Improve documentation and JavaScript client

Refactor: Move and rename client implementation

Refactor: Simplify RPC client

Refactor: Move JRPCServer to dedicated file

Cleaned up codebase and improved documentation

Updated WebSocket RPC implementation

Renamed project to jrpc-oo_python

Added WebSocket support and JavaScript client

Implement class-based RPC with proper socket handling

Initial commit: Basic JSON-RPC 2.0 implementation with Python server and client