Create Custom Python REPL (Interactive Interpreter)

[anthonykim1]

We need custom Python REPL/interactive interpreter that would communicate to TypeScript side whether that is a Notebook controller for Python extension or some other REPL controller in the future.

Referenced in: #23029

First need to build Python REPL that processes user input and output , then need to build communication that goes in/out of a simple node project.

Once we verify there is fine communication between custom Python REPL and node/TypeScript side of things, we can embed these code into Python extension and create a notebook controller so that custom Python REPL can be used as a kernel to be fed into interactive window for users to experiment.

[anthonykim1]

How to communicate to Node/TypeScript side: Stdin/out, socket, named pipe.
Need to be able to call Python script from node app. Using spawn and child_process we can call Python script

[anthonykim1]

Completed via: #23235