Add VS2022 cmake shortcut.

CEF requires C++11 and thus removed the OVERRIDE macro, requires using
nullptr instead of NULL.
Version 95 removed some settings:
https://bitbucket.org/chromiumembedded/cef/issues/2820/remove-cefbrowsersettings

CefExecuteProcess needs the app pointer otherwise initialization in multi-process mode doesn't work correctly

Consolidate the general, platform-agnostic part of the main()/WinMain()
in static FCHost::main() function to avoid code duplication.