Add qmake2cmake[.bat] wrapper scripts that can be used to convert user
projects to CMake. For now, user projects are internally handled as Qt
examples with one difference: the generation of example-specific
installation code is suppressed.
Fixes: QTBUG-98655
Change-Id: I1a57f6d12efe0bdf383592ab33682a611692db80
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
