Replace https://github.com/xamarin/xamarin-macios/pull/1973 expect that
the test parts are still needed.
* Add XM SDK + LinkSkip test
* [macos] Add platform linking support to msbuild
* [macos] Add full SDK test
* [macios] Diable classic from using linkplatform
- Extended test infrastructure change to allow classic projects that include bundling
- Setting linkplatform in MonoBundlingExtraArgs since we don't even read project setting LinkMode - Platform for classic