Passing APIRouter tags to the fast-api DaprActor

Describe the proposal

The routes from the DaprActor appears in the openapi documentation so i think the library should allow to pass the router tags or supply default tags in order to differentiate the Actor routes from the application routes The new Actor should look like:

class DaprActor(object):
    def __init__(self, app: FastAPI, router_tags: List[str]): <----- New
        self._dapr_serializer = DefaultJSONSerializer()
        self._router = APIRouter(tags=tags) <----- New
        self.init_routes(self._router)
        app.include_router(self._router)
......

Will now look like

[yairsimantov20]

Used only for the swagger docs. The swagger docs don’t show anything else about it https://fastapi.tiangolo.com/tutorial/bigger-applications/?h=tags#add-some-custom-tags-responses-and-dependencies https://fastapi.tiangolo.com/tutorial/metadata/?h=tags#use-your-tags

[yairsimantov20]

@berndverst I’ve commented on your pull request if there is something you don’t agree with then please let me know (Its my first pull request in an open source)