Fastapi-websocket-rpc

Bug fix for memory leak in long running session (15)
contribution by jsdanielh

Patch fix: we fixed the requirements.txt file with unpinned dependencies, and removed unused dependencies

Added option to get remote channel id

Support for custom serialization and wire type contributed by cjh1.
Allows using Binary webSocket type.

You can now pass serializing_socket_cls to enable a different type of serialization for both endpoint and client.

Fix requirements conflict issue