* bin/hb-mkimp.bat
- Not creating msvc implibs for QT .dlls anymore.
.dlls distributed in the QT binary package are using
Itanium ABI (built with MinGW/GCC), which isn't compatible
with ABI used by MSVC. Generating an implib is impossible here.
Those who want to use QT with MSVC Harbour builds should
rebuild QT .dlls from source, implibs will be generated
automatically in this case (I assume).