Disable binplacing test framework when -BuildTests=false (#24034)
Disable binplacing test framework when -BuildTests=false (#24034)

This change disables syncing and binplacing of test framework when the
-BuildTests option passed to build.sh or sync.sh is set to false.
This is helpful when bootstrapping a new platform where the core-setup
is not built yet and so the Microsoft.NETCore.DotNetHost and
Microsoft.NETCore.DotNetAppHost packages that are required for the
test running don't exist yet.
ravimeda/corefx,mmitche/corefx,wtgodbe/corefx,Ermiar/corefx,fgreinacher/corefx,axelheer/corefx,parjong/corefx,zhenlan/corefx,shimingsg/corefx,mmitche/corefx,shimingsg/corefx,ericstj/corefx,ravimeda/corefx,ericstj/corefx,zhenlan/corefx,Ermiar/corefx,ravimeda/corefx,zhenlan/corefx,wtgodbe/corefx,seanshpark/corefx,shimingsg/corefx,tijoytom/corefx,parjong/corefx,tijoytom/corefx,twsouthwick/corefx,mmitche/corefx,Jiayili1/corefx,parjong/corefx,parjong/corefx,shimingsg/corefx,ravimeda/corefx,fgreinacher/corefx,zhenlan/corefx,wtgodbe/corefx,zhenlan/corefx,seanshpark/corefx,ptoonen/corefx,Ermiar/corefx,ViktorHofer/corefx,twsouthwick/corefx,seanshpark/corefx,ravimeda/corefx,zhenlan/corefx,twsouthwick/corefx,BrennanConroy/corefx,wtgodbe/corefx,parjong/corefx,wtgodbe/corefx,mmitche/corefx,Jiayili1/corefx,Ermiar/corefx,ericstj/corefx,seanshpark/corefx,BrennanConroy/corefx,tijoytom/corefx,mmitche/corefx,ericstj/corefx,axelheer/corefx,ViktorHofer/corefx,seanshpark/corefx,shimingsg/corefx,mmitche/corefx,ptoonen/corefx,ericstj/corefx,tijoytom/corefx,fgreinacher/corefx,ptoonen/corefx,axelheer/corefx,ptoonen/corefx,axelheer/corefx,Jiayili1/corefx,ericstj/corefx,ravimeda/corefx,twsouthwick/corefx,Ermiar/corefx,tijoytom/corefx,tijoytom/corefx,zhenlan/corefx,shimingsg/corefx,ptoonen/corefx,seanshpark/corefx,ViktorHofer/corefx,Jiayili1/corefx,ViktorHofer/corefx,Jiayili1/corefx,axelheer/corefx,ptoonen/corefx,Ermiar/corefx,twsouthwick/corefx,ViktorHofer/corefx,seanshpark/corefx,parjong/corefx,ericstj/corefx,mmitche/corefx,parjong/corefx,Ermiar/corefx,wtgodbe/corefx,axelheer/corefx,twsouthwick/corefx,ravimeda/corefx,ViktorHofer/corefx,tijoytom/corefx,Jiayili1/corefx,ptoonen/corefx,fgreinacher/corefx,shimingsg/corefx,ViktorHofer/corefx,BrennanConroy/corefx,wtgodbe/corefx,twsouthwick/corefx,Jiayili1/corefx