This change adds the necessary items to the build projects to avoid erroring out right at the start. It does not add _support_ for targeting Windows on ARM32, but is a necessary prerequisite for adding it.
pylauncher.vcxproj already has the same dependency, and adding it to
the pywlauncher project eliminates the possibility of the pywlauncher
build failing when building the solution in parallel. In particular,
pywlauncher may fail to build when doing a "Rebuild Solution" from the
VS Build menu.