Add CPython version info in pyrevit env output

[sanzoghenzo]

Is your feature request related to a problem? Please describe

The CPython version doesn't come up in pyrevit env outupt.
For this, users filing a bug report needs to specify the active engine in addition to pasting the output.

Describe the solution you'd like

Have the active CPython engine in the pyrevit env output

Describe alternatives you've considered

Keep asking the user to add the info manually

Additional context

I tried to add this myself, but I found out that the current code to detect the active environments only detects the IronPython engines, because it scans for the pyRevtit .addin manifests (which are created for the selected ironpython version).
Now that I write about this, I realize that the info needed is in the PyRevit_config.ini file, so it should be easy to add it.