Added meeting and waiting room branding endpoints for groups, accounts, and users.

New APIs for Groups and Users


## New **Groups** APIs:
	- `POST /v2/groups/{groupId}/settings/meeting_waiting_room_branding`
	- `POST /v2/groups/{groupId}/settings/webinar_waiting_room_branding`
	- `POST /v2/accounts/{accountId}/groups/{groupId}/settings/webinar_waiting_room_branding`

## New **Users** APIs:
	- `POST /v2/users/{userId}/settings/meeting_waiting_room_branding`
	- `POST /v2/users/{userId}/settings/webinar_waiting_room_branding`
	- `POST /v2/accounts/{accountId}/users/{userId}/settings/webinar_waiting_room_branding`

    


New APIs for Groups and Users

New Groups APIs:

New Users APIs: