Fixed PGO builds
The intermediate PG instrument build now lands in Platform-pgi and the final optimized build in Platform-pgo.
diff --git a/PCbuild9/pgupdate.vsprops b/PCbuild9/pgupdate.vsprops
index 826242d..30ab891 100644
--- a/PCbuild9/pgupdate.vsprops
+++ b/PCbuild9/pgupdate.vsprops
@@ -3,10 +3,12 @@
 	ProjectType="Visual C++"
 	Version="8.00"
 	Name="pgoptimize"
+	OutputDirectory="$(SolutionDir)$(PlatformName)-pgo\"
 	InheritedPropertySheets="$(SolutionDir)\pginstrument.vsprops"
 	>
 	<Tool
 		Name="VCLinkerTool"
+		AdditionalManifestDependencies=""
 		LinkTimeCodeGeneration="4"
 	/>
 </VisualStudioPropertySheet>