refactor: separate LSP options from transport

[matan-h]

This PR separates LSP configuration from transport handling.

Previously LspStdioConfig and LspSocketConfig were responsible for both LSP options and creating and managing the transport. adding a new option (e.g. initializationOptions) required updating both classes.

Now, they are separate them into clear classes:

• LspConfig - LSP protocol
• LspTransport - Transport parsing, either byte parsing, or WS

With that, it didn't make sense to create the Process,or WebSocketChannel directly in LspConfig, so I keep them in shortcut classes, named LspStdioConfig and LspSocketConfig to not break compatibility.

Changes:

• Added LspTransport abstract class, with StdioTransport and SocketTransport implementing it
• Make LspConfig able to work with any transport.
• Allow users to supply their own process/websocket or new transport
• Add initializationOptions option

[heckmon]

I'll review this PR after my exams👍👍. Currently I'm very busy