* Add generated chat code from new swagger

* Change to use new generated code

* Address PR Feedback

* Remove CommunicationUserIdentifierModel in identity,phone number package

* Replace identifier with rawId

* Change serilizer

* Replace indentifier with rawId in test code

* Sync models across modules

* fix typo in serizliser

* Rearrange imports

* Replace rawId with raw_id

* remove trailing newline

Co-authored-by: turalf <tufarhad@microsoft.com>

- CommunicationUserIdentifier models added
- create_chat_thread - returns CreateChatThreadResult instead of ChatThreadClient
- add_participant - docstring update AddChatParticipantsResult instead of None
- add_participants - docstring update AddChatParticipantsResult instead of None

- add_participant - AddChatParticipantsResult -> tuple(ChatThreadParticipant, CommunicationError)
- add_participants - AddChatParticipantsResult -> list(tuple(ChatThreadParticipant, CommunicationError))
- unit tests modified as per signature change
- CommunicationErrorResponseConverter added to cosolidate list(ChatThreadParticipant) and list(CommunicationError) into list(tuple(ChatThreadParticipant, CommunicationError))
- e2e tests modified as per signature change

…ls with ease

- CreateChatThreadResult -> attributes changed to
  - chat_thread -> ChatThread (no change)
  - Errors -> CreateChatThreadErrors -> list(tuple(ChatThreadParticipant, CommunicationError))
- create_chat_thread -> `thread_participants` and `repeatability_request_id` changed to keyword arguments
- Modify unit tests to capture method signature modifications
- Modify e2e tests to capture method signature modifications

- Update README.md with modified signature
- Update samples with new method signatures
- Add test to detect invalid instantiation of AccessToken
- Minor documentation updates
- Modify unit tests to capture method signature modifications
- Modify e2e tests to capture method signature modifications