fix bug: fail to load package VsixSuppression
fix bug: fail to load package VsixSuppression

1. move package file
2. add package in csproj file

Microsoft/VSSDK-Extensibility-Samples,yannduran/VSSDK-Extensibility-Samples,AmadeusW/VSSDK-Extensibility-Samples,HydAu/VisualStudioExt1,HydAu/VisualStudioExt1,Microsoft/VSSDK-Extensibility-Samples,AmadeusW/VSSDK-Extensibility-Samples,yannduran/VSSDK-Extensibility-Samples