* harbour/source/rtl/gtwvt/gtwvt.c
* formatting
* harbour/contrib/gtwvg/gtwvt.h
* harbour/contrib/gtwvg/gtwvt.c
* removed some unused code and redirect some methods to common
for all MS-Win GTs functions.
Pritpal this code needs cleanup. Now it's xHarbour GT hacked
to compile and link with Harbour API. It means that this code
also inherited some small incompatibilities to Clipper which
exists in xHarbour GTs. If you agree I'll try to systematically
clean it and as I can see IMO the final version will look like
GTWVT in core code plus some additional code so it can be quite
easy separated. Probably with some small modifications in GTWVT it
will be possible to remove these two files from GTWVG at all
changing GTWVG to inherit from core GTWVT. Such separation will
also show what is core GT code and what is GUI Windows extension
what should help in defining common multi platform API.