text: Title: Feature: AsyncAPI HTTP support
  Body: Using **AsgiFastStream** object we can register some HTTP routes our application serve.
  We should draw such routes in **AsyncAPI** specification as well. This feature should be togglable for sure in the basic `include_in_schema=True/False` way, but I am not sure about default value
  
  ```python
  @get(include_in_schema=False)
  async def liveness_ping(scope):
      return AsgiResponse(b"", status_code=200)
  
  app = FastStream(broker).as_asgi(
      asgi_routes=[
          ("/liveness", liveness_ping),
          ("/readiness", make_ping_asgi(broker, timeout=5.0, include_in_schema=False)),
      ],
  )
  ```
  
  AsyncAPI HTTP bindings - https://github.com/asyncapi/bindings/blob/master/http/README.md