Initial work on an automated VSIX testing tool.  Not working or tested yet.

FossilOrigin-Name: 496e4ac984b2548dd5f2f969cd34656b586cfcfe
diff --git a/vsixtest/pch.cpp b/vsixtest/pch.cpp
new file mode 100644
index 0000000..ef288d8
--- /dev/null
+++ b/vsixtest/pch.cpp
@@ -0,0 +1,6 @@
+//

+// pch.cpp

+// Include the standard header and generate the precompiled header.

+//

+

+#include "pch.h"