[Ohrrpgce] SVN: teeemcee/8586 Remove gfx_Present_SW, instead make gfx_Present mandatory. A little bit

[subversion at HamsterRepublic.com]

teeemcee
2017-03-25 05:25:16 -0700 (Sat, 25 Mar 2017)
100
Remove gfx_Present_SW, instead make gfx_Present mandatory. A little bit of header shuffling required
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U   wip/backends.bas
U   wip/gfx.bi
U   wip/gfx_alleg.bas
U   wip/surface.bi
U   wip/surface.cpp
U   wip/surface.h