Fix UAP test version mismatch: use built files
Fix UAP test version mismatch: use built files

The testhost previously pulled in files from the runner package, which included WCF DLLs with old versions. Instead, exclude those DLLs so the ones that were just built are used.

ericstj/wcf,mconnew/wcf,ericstj/wcf,mconnew/wcf,dotnet/wcf,imcarolwang/wcf,StephenBonikowsky/wcf,hongdai/wcf,dotnet/wcf,imcarolwang/wcf,mconnew/wcf,KKhurin/wcf,imcarolwang/wcf,ElJerry/wcf,dotnet/wcf,hongdai/wcf,zhenlan/wcf,zhenlan/wcf,ElJerry/wcf,KKhurin/wcf,StephenBonikowsky/wcf