Add BuildArgs to store common build arguments . ### Description

This renames `ReplayArgs` in pywasmcross to `BuildArgs` and uses it in buildall and buildpkg. No functional changes are involved except for some modifications in function parameters and how logs are copied after the build.

This PR makes it easier to call methods in buildall and buildpkg from the new CLI.

### Checklists

- [x] Add / update tests

from pytest_pyodide import run_in_pyodide


@run_in_pyodide(packages=["pycryptodome"])
def test_pycryptodome(selenium):
    from Crypto.Hash import MD5

    hasher = MD5.new()
    hasher.update(b"Hello, World!")
    assert hasher.hexdigest() == "65a8e27d8879283831b664bd8b7f0ad4"

from pytest_pyodide import run_in_pyodide


@run_in_pyodide(packages=["pycryptodome"])
def test_pycryptodome(selenium):
    from Crypto.Hash import MD5

    hasher = MD5.new()
    hasher.update(b"Hello, World!")
    assert hasher.hexdigest() == "65a8e27d8879283831b664bd8b7f0ad4"
