Adds back VS Debugging by manually importing the correct project pages.
Adds back VS Debugging by manually importing the correct project pages.

Description:
Change to remove 8.1 caused UTs to not be debuggable in VS. This changes adds that
functionality back by manually adding a few arcane MSBuild properties. I think the
fact that this is an app container like .exe but an actual modern app was causing
the wrong debugger to launch

Reviewed by: artems

pradipd/WinObjC,MSFTFox/WinObjC,ehren/WinObjC,rajsesh-msft/WinObjC,rajsesh-msft/WinObjC,nathpete-msft/WinObjC,ehren/WinObjC,Microsoft/WinObjC,autodesk-forks/WinObjC,s5msft/WinObjC,cloudmonkeypeng/WinObjC,yweijiang/WinObjC,bbowman/WinObjC,alexdrenea/WinObjC,vkvenkat/WinObjC,alexdrenea/WinObjC,pradipd/WinObjC,Microsoft/WinObjC,rajsesh-msft/WinObjC,Microsoft/WinObjC,ehren/WinObjC,bleupierre/WinObjC,s5msft/WinObjC,bSr43/WinObjC,pradipd/WinObjC,bleupierre/WinObjC,vkvenkat/WinObjC,yweijiang/WinObjC,s5msft/WinObjC,bleupierre/WinObjC,nathpete-msft/WinObjC,cloudmonkeypeng/WinObjC,afaruqui/WinObjC,afaruqui/WinObjC,cloudmonkeypeng/WinObjC,pradipd/WinObjC,alexdrenea/WinObjC,MSFTFox/WinObjC,autodesk-forks/WinObjC,bSr43/WinObjC,bbowman/WinObjC,nathpete-msft/WinObjC,bbowman/WinObjC,yweijiang/WinObjC,alexdrenea/WinObjC,s5msft/WinObjC,vkvenkat/WinObjC,ehren/WinObjC,vkvenkat/WinObjC,MSFTFox/WinObjC,bbowman/WinObjC,ehren/WinObjC,bleupierre/WinObjC,afaruqui/WinObjC,afaruqui/WinObjC,MSFTFox/WinObjC,pradipd/WinObjC,cloudmonkeypeng/WinObjC,autodesk-forks/WinObjC,Microsoft/WinObjC,bSr43/WinObjC,nathpete-msft/WinObjC,rajsesh-msft/WinObjC,bbowman/WinObjC,bSr43/WinObjC,yweijiang/WinObjC,nathpete-msft/WinObjC,autodesk-forks/WinObjC