This feature is Windows-only and must be turned on manually.
For MSVC it sets the MSVC_RUNTIME_LIBRARY target property.
For MinGW it adds the -static linker flag.
Change-Id: I9da3b88d545b34bc34a3a80301b2dd1b5986fa88
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>