Download standard libraries in a zipfile. ### Description

This is a re-work of #3166. After this PR, the standard libraries are not vendored with `pyodide.asm.data`. Instead, it is now downloaded separately in a zip file similar to how we download pyodide_py.tar.

~~The hard part of this PR is to bootstrap Python without Python source codes. This requires deep-freezing all modules that are required during the bootstrap.~~

~~As mentioned in #3539, `encodings` module is needed during the bootstrap stage, but it is a large module (> 1.0MB) containing a bunch of encodings in the world, so I tried to freeze a subset of the encodings module that is used in the bootstrap (thanks for the idea from Hood), so the size increase of pyodide.asm.wasm is only 70KB.~~

~~However, the problem of freezing only part of the module is that the current Python import system does not support it. Therefore, I added some hacks to make it work, which is explained in a comment in pyodide.ts.~~

### File size change after this PR:

Before

```
- pyodide.asm.data:
    Original size: 4555 KB
    Gzip compressed size (level 1): 3062 KB
    Gzip compressed size (level 6): 2911 KB
    Gzip compressed size (level 9): 2911 KB
    Brotli compressed size: 2522 KB
- pyodide.asm.js:
    Original size: 1186 KB
    Gzip compressed size (level 1): 246 KB
    Gzip compressed size (level 6): 208 KB
    Gzip compressed size (level 9): 208 KB
    Brotli compressed size: 169 KB
- pyodide.asm.wasm:
    Original size: 8715 KB
    Gzip compressed size (level 1): 3142 KB
    Gzip compressed size (level 6): 2791 KB
    Gzip compressed size (level 9): 2791 KB
    Brotli compressed size: 2096 KB
```

After

```
- pyodide.asm.data:
    Original size: 4 KB
    Gzip compressed size (level 1): 0 KB
    Gzip compressed size (level 6): 0 KB
    Gzip compressed size (level 9): 0 KB
    Brotli compressed size: 0 KB
- pyodide.asm.js:
    Original size: 1086 KB
    Gzip compressed size (level 1): 213 KB
    Gzip compressed size (level 6): 177 KB
    Gzip compressed size (level 9): 177 KB
    Brotli compressed size: 145 KB
- pyodide.asm.wasm:
    Original size: 8775 KB
    Gzip compressed size (level 1): 3162 KB
    Gzip compressed size (level 6): 2806 KB
    Gzip compressed size (level 9): 2806 KB
    Brotli compressed size: 2105 KB
- python_stdlib.zip:
    Original size: 2230 KB
    Gzip compressed size (level 1): 2196 KB
    Gzip compressed size (level 6): 2194 KB
    Gzip compressed size (level 9): 2194 KB
    Brotli compressed size: 2181 KB
```


### Remaining works:

- remove pyodide.asm.data: the only remaining parts inside pyodide.asm.data is our [webbrowser.py](https://github.com/pyodide/pyodide/blob/main/src/py/lib/webbrowser.py) stub, I think we can either remove it or move it into pyodide_py.
- maybe merge pyodide_py.tar into the standard libraries zipfile.
- add option to use pycompiled standard libraries.

### Checklists

- [x] Add a [CHANGELOG](https://github.com/pyodide/pyodide/blob/main/docs/project/changelog.md) entry
- [x] Add / update tests

from pytest_pyodide import run_in_pyodide


@run_in_pyodide(packages=["wrapt"])
def test_wrapt(selenium):
    import inspect
    import unittest

    import wrapt

    @wrapt.decorator
    def passthru_decorator(wrapped, instance, args, kwargs):
        return wrapped(*args, **kwargs)

    def function1(arg):
        """documentation"""
        return arg

    function1o = function1
    function1d = passthru_decorator(function1)
    assert function1d is not function1o

    class TestNamingFunction(unittest.TestCase):
        def test_object_name(self):
            # Test preservation of function __name__ attribute.

            self.assertEqual(function1d.__name__, function1o.__name__)

        def test_object_qualname(self):
            # Test preservation of function __qualname__ attribute.

            try:
                __qualname__ = function1o.__qualname__
            except AttributeError:
                pass
            else:
                self.assertEqual(function1d.__qualname__, __qualname__)

        def test_module_name(self):
            # Test preservation of function __module__ attribute.

            self.assertEqual(function1d.__module__, __name__)

        def test_doc_string(self):
            # Test preservation of function __doc__ attribute.

            self.assertEqual(function1d.__doc__, function1o.__doc__)

        def test_argspec(self):
            # Test preservation of function argument specification.

            function1o_argspec = inspect.getargspec(function1o)
            function1d_argspec = inspect.getargspec(function1d)
            self.assertEqual(function1o_argspec, function1d_argspec)

        def test_isinstance(self):
            # Test preservation of isinstance() checks.

            self.assertTrue(isinstance(function1d, type(function1o)))

    class TestCallingFunction(unittest.TestCase):
        def test_call_function(self):
            _args = (1, 2)
            _kwargs = {"one": 1, "two": 2}

            @wrapt.decorator
            def _decorator(wrapped, instance, args, kwargs):
                self.assertEqual(instance, None)
                self.assertEqual(args, _args)
                self.assertEqual(kwargs, _kwargs)
                return wrapped(*args, **kwargs)

            @_decorator
            def _function(*args, **kwargs):
                return args, kwargs

            result = _function(*_args, **_kwargs)

            self.assertEqual(result, (_args, _kwargs))

    # Run tests
    with unittest.TestCase().assertRaisesRegex(SystemExit, "False"):
        unittest.main()

from pytest_pyodide import run_in_pyodide


@run_in_pyodide(packages=["wrapt"])
def test_wrapt(selenium):
    import inspect
    import unittest

    import wrapt

    @wrapt.decorator
    def passthru_decorator(wrapped, instance, args, kwargs):
        return wrapped(*args, **kwargs)

    def function1(arg):
        """documentation"""
        return arg

    function1o = function1
    function1d = passthru_decorator(function1)
    assert function1d is not function1o

    class TestNamingFunction(unittest.TestCase):
        def test_object_name(self):
            # Test preservation of function __name__ attribute.

            self.assertEqual(function1d.__name__, function1o.__name__)

        def test_object_qualname(self):
            # Test preservation of function __qualname__ attribute.

            try:
                __qualname__ = function1o.__qualname__
            except AttributeError:
                pass
            else:
                self.assertEqual(function1d.__qualname__, __qualname__)

        def test_module_name(self):
            # Test preservation of function __module__ attribute.

            self.assertEqual(function1d.__module__, __name__)

        def test_doc_string(self):
            # Test preservation of function __doc__ attribute.

            self.assertEqual(function1d.__doc__, function1o.__doc__)

        def test_argspec(self):
            # Test preservation of function argument specification.

            function1o_argspec = inspect.getargspec(function1o)
            function1d_argspec = inspect.getargspec(function1d)
            self.assertEqual(function1o_argspec, function1d_argspec)

        def test_isinstance(self):
            # Test preservation of isinstance() checks.

            self.assertTrue(isinstance(function1d, type(function1o)))

    class TestCallingFunction(unittest.TestCase):
        def test_call_function(self):
            _args = (1, 2)
            _kwargs = {"one": 1, "two": 2}

            @wrapt.decorator
            def _decorator(wrapped, instance, args, kwargs):
                self.assertEqual(instance, None)
                self.assertEqual(args, _args)
                self.assertEqual(kwargs, _kwargs)
                return wrapped(*args, **kwargs)

            @_decorator
            def _function(*args, **kwargs):
                return args, kwargs

            result = _function(*_args, **_kwargs)

            self.assertEqual(result, (_args, _kwargs))

    # Run tests
    with unittest.TestCase().assertRaisesRegex(SystemExit, "False"):
        unittest.main()
