bpo-34977: Add Windows App Store package (GH-11027)

Also adds the PC/layout script for generating layouts on Windows.

PC/layout/support/distutils.command.bdist_wininst.py

@@ -0,0 +1,25 @@
+"""distutils.command.bdist_wininst
+
+Suppress the 'bdist_wininst' command, while still allowing
+setuptools to import it without breaking."""
+
+from distutils.core import Command
+from distutils.errors import DistutilsPlatformError
+
+
+class bdist_wininst(Command):
+    description = "create an executable installer for MS Windows"
+
+    # Marker for tests that we have the unsupported bdist_wininst
+    _unsupported = True
+
+    def initialize_options(self):
+        pass
+
+    def finalize_options(self):
+        pass
+
+    def run(self):
+        raise DistutilsPlatformError(
+            "bdist_wininst is not supported in this Python distribution"
+        )