Paths for kuksa_viss_client
It is not possible to use the ~-operator in the kuksa-viss-client to use the home directory path.
```
Test Client> authorize ~/kuksa.val/kuksa_certificates/jwt/all-read-write.json.token 
{
    "action": "authorize", 
    "error": {
        "message": "Check the JWT token passed", 
        "number": 401, 
        "reason": "Invalid Token"
    }, 
    "requestId": "15388139-03b5-4443-bf3f-2f3e767013f5", 
    "timestamp": "2021-06-14T10:10:46.1623661846Z"
}
```
diff --git a/kuksa_viss_client/__init__.py b/kuksa_viss_client/__init__.py
index 23fe89b..3f4c06c 100644
--- a/kuksa_viss_client/__init__.py
+++ b/kuksa_viss_client/__init__.py
@@ -63,6 +63,7 @@ class KuksaClientThread(threading.Thread):
     def authorize(self, token=None, timeout = 2):
         if token == None:
             token = self.tokenfile
+        token = os.path.expanduser(token)
         if os.path.isfile(token):
             with open(token, "r") as f:
                 token = f.readline()
['kuksa_viss_client/__init__.py']