WiX: extract header sets for Foundation internal modules

The headers are shared across multiple SDKs and will be used across
additional future SDKs. This extracts the headers list into an include
list that will be reused across multiple SDK definitions.

Author: compnerd

platforms/Windows/sdk/_FoundationCShims.wxi

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Include>
+  <Component>
+    <File Source="$(SDK_ROOT)\usr\lib\swift\_FoundationCShims\bplist_shims.h" />
+  </Component>
+  <Component>
+    <File Source="$(SDK_ROOT)\usr\lib\swift\_FoundationCShims\CFUniCharBitmapData.h" />
+  </Component>
+  <Component>
+    <File Source="$(SDK_ROOT)\usr\lib\swift\_FoundationCShims\CFUniCharBitmapData.inc.h" />
+  </Component>
+  <Component>
+    <File Source="$(SDK_ROOT)\usr\lib\swift\_FoundationCShims\filemanager_shims.h" />
+  </Component>
+  <Component>
+    <File Source="$(SDK_ROOT)\usr\lib\swift\_FoundationCShims\io_shims.h" />
+  </Component>
+  <Component>
+    <File Source="$(SDK_ROOT)\usr\lib\swift\_FoundationCShims\module.modulemap" />
+  </Component>
+  <Component>
+    <File Source="$(SDK_ROOT)\usr\lib\swift\_FoundationCShims\platform_shims.h" />
+  </Component>
+  <Component>
+    <File Source="$(SDK_ROOT)\usr\lib\swift\_FoundationCShims\string_shims.h" />
+  </Component>
+  <Component>
+    <File Source="$(SDK_ROOT)\usr\lib\swift\_FoundationCShims\uuid.h" />
+  </Component>
+  <Component>
+    <File Source="$(SDK_ROOT)\usr\lib\swift\_FoundationCShims\_CShimsMacros.h" />
+  </Component>
+  <Component>
+    <File Source="$(SDK_ROOT)\usr\lib\swift\_FoundationCShims\_CShimsTargetConditionals.h" />
+  </Component>
+  <Component>
+    <File Source="$(SDK_ROOT)\usr\lib\swift\_FoundationCShims\_CStdlib.h" />
+  </Component>
+  <Component>
+    <File Source="$(SDK_ROOT)\usr\lib\swift\_FoundationCShims\_FoundationCShims.h" />
+  </Component>
+</Include>