Override PackageOutputPath to use ConfigurationGroup
Override PackageOutputPath to use ConfigurationGroup

Reset PackageOutputPath property from arcade as we
need to use ConfigurationGroup instead of Configuration
which arcade uses as corefx overrides Configuration to be
more then just Debug/Release.

https://github.com/dotnet/corefx/issues/33275

ptoonen/corefx,wtgodbe/corefx,ericstj/corefx,ptoonen/corefx,mmitche/corefx,wtgodbe/corefx,ViktorHofer/corefx,ericstj/corefx,ViktorHofer/corefx,wtgodbe/corefx,mmitche/corefx,wtgodbe/corefx,mmitche/corefx,shimingsg/corefx,wtgodbe/corefx,shimingsg/corefx,ptoonen/corefx,ericstj/corefx,wtgodbe/corefx,mmitche/corefx,BrennanConroy/corefx,ViktorHofer/corefx,ericstj/corefx,shimingsg/corefx,ericstj/corefx,ViktorHofer/corefx,shimingsg/corefx,mmitche/corefx,ViktorHofer/corefx,wtgodbe/corefx,shimingsg/corefx,ptoonen/corefx,ViktorHofer/corefx,shimingsg/corefx,shimingsg/corefx,ptoonen/corefx,BrennanConroy/corefx,ptoonen/corefx,mmitche/corefx,ptoonen/corefx,ericstj/corefx,ViktorHofer/corefx,ericstj/corefx,mmitche/corefx,BrennanConroy/corefx