Prep the python extension to allow alternate environment management and package management code

[karthiknadig]

### Tasks
- [x] Disable python extension discovery
- [x] Redirect Interpreter commands to envs implementation
- [x] Run in terminal (dynamically handle activation via shell integration)
- [x] Debug in terminal (connect with debugpy extension)
- [x] Auto selection
- [x] Provide execution info for a given environment
- [x] Testing should use python from envs implementation
- [x] Commands: Install Python (win,mac,linux)
- [x] Commands: set/reset interpreter command
- [x] New Environment creation prompt
- [x] Interpreter Display