vgamodex uses gvar now!

vgamodex uses  gvar now!
	modified:   16.exe
	modified:   bakapi.exe
	modified:   fontgfx.exe
	modified:   maptest.exe
	modified:   palettec.exe
	modified:   pcxtest.exe
	modified:   scroll.exe
	modified:   src/16.c
	modified:   src/bakapi.c
	modified:   src/lib/modex16.c
	modified:   src/lib/modex16.h
	modified:   src/scroll.c
	modified:   test.exe
	modified:   test2.exe