Enable local Python debugging with DebugPy

[jhonabreul]

• Enable local Python debugging with DebugPy.
• Warn PTVSD deprecation:
  • PTVSD has been deprecated for 4+ years and DebugPy is its replacement.
  • PTVSD does not support Python 3.11, which is the cause of the issue.
  • We don't remote PTVSD yet but warn of it's deprecation and recommend using DebugPy instead.

Tested by debugging using --debug debugpy and following the nstructions in "Python and VS Code". The instructions should be modified to reflect that using DebugPy is recommented now.

Closes #451

[AlexCatarino]

Documented: https://github.com/QuantConnect/Documentation/commit/6866a277a50b195a9ab9507057c7d071e9032c92