Rsocket

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- Command line fixes:
- Support passing ssl certificate and http headers when using ws/wss
- Support requesting --version without the need to specify URI arguments
- Option --interactionModel to specify interaction (eg. request_response, request_stream)
- Added Metadata Push support

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- Added running tests on python 3.11 and package classification
- Removed data and metadata content from logs. Replaced with data and metadata sizes
- Performance test examples available in *performance* folder
- WSS (Secure websocket) example and support (aiohttp)
- Refactored Websocket transport to allow providing either url or an existing websocket
- Added command line tool (rsocket-py)

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- Breaking change: Added ability to await fire_and_forget and push_metadata:
- Both now return a future which resolves when the payload was sent completely (including fragmentation for fnf)
- Fixed fragmentation implementation (misunderstood spec):
- fragments after first one are now correctly of type PayloadFrame
- fragment size now includes frame header and length
- Added checking fragment size limit (minimum 64) as in java implementation
- Updated examples
- Added reactivex (RxPy version 4) wrapper client
- Added Initial support for http3 (wss)
- Better type hint for return value of request_response

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Initial mostly complete implementation after long time from previous release (0.2.0)

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Legacy. Unknown history.