Add support for returning a DispatchResult from a JSON-RPC method handler.

• Release 1.1
  • Add Universal message handling.
    • Message-based parsing, for both request and response.
    • Message-based execution via rpc_pipeline.runMessage(), for both request and response.
    • Message-based streaming, handling both request and response in the stream.
  • RpcRegistry supports extended handlers: pre-dispatch, post-dispatch, and fallback handler.
  • Fallback handler for handling any unregistered request methods.
  • Add RpcRequest.parseRpcRequestOwned() to handle memory ownership of passed in JSON string.
  • Add RpcResponse.parseRpcResponseOwned() to handle memory ownership of passed in JSON string.
  • Remove error union from the return value of response.parseRpcResponse().
  • Add readHttpHeaders() to parse all HTTP-style headers, not just Content-Length.
  • Add the LSP client example.

Full Changelog: 1.0.0...1.0.1

Full Changelog: https://github.com/williamw520/zigjr/commits/1.0.0