Detection for VS 2022 toolchain

[MarkZ3]

This adds basic support for VS 2022 by detecting the toolchain. I.e. include paths, lib paths, and PATH env var are properly detected.

The detection works the same as 2017 and 2019 since vswhere.exe works the same and the folder layout hasn't changed.

Revived from https://git.eclipse.org/r/c/cdt/org.eclipse.cdt/+/182202

[jonahgraham]

I assume build is failing because of #780 - I'll try to solve the immediate issue soon.

[jonahgraham]

I rebased - once builds passed anyone can merge. (Maybe time to look at enabling auto-merge for CDT?)

[jonahgraham]

My code to ensure feature copyrights are up to date is confused by the authored date being in the past. I'll need to revisit

cdt/releng/scripts/check_features.sh

Line 62 in 271041b

feature_end_year=$(git log --format='%ad' --date="format:%Y" -- $feature_xml $plugin_dir | head -1)

or maybe just disable it. Sorry that another process issue is getting in the way of a simple code change.

[MarkZ3]

thank you!