Move azure.worker to azure.functions_worker

Fixes: #140

Author: elprans

.flake8

@@ -2,4 +2,4 @@
 ignore = W503,E402,E731
 exclude =
     .git, __pycache__, build, dist, .eggs, .github, .local,
-    Samples, azure/worker/protos/, docs/
+    Samples, azure/functions_worker/protos/, docs/

azure/functions/_cosmosdb.py

@@ -23,7 +23,7 @@ def from_json(cls, json_data: str) -> 'Document':
     def from_dict(cls, dct: dict) -> 'Document':
         """Create a Document from a dict object."""
         filtered = {k: v for k, v in dct.items() if k not in _SYSTEM_KEYS}
-        return cls(filtered)  # type: ignore
+        return cls(filtered)
 
     def to_json(self) -> str:
         """Return the JSON representation of the document."""