Add 'submit Git commit' to the growing list of developer tasks in Visual Studio 2022 that are now being handled by AI.

Also the Visual Studio tooling support for Git is almost blank. The compiled version of the add-in is available in the Visual Studio Gallery.

Visual Studio 2022 version 17.1 is now generally available for production use, while Visual Studio 2022 version 17.2 is available in a preview.