DIB Engine

[Massimo Del Fedele]

Well, I managed to introduce Jesse Allen's dib engine in current wine 
tree, and it worked.
It has many stubbed functions, but I could load and run Autocad with it, 
which IMHO is a good result.
Autocad misses many toolbar's icons but, about the problem of very slow 
TT fonts, the performance increased noticeably; pannin  a drawing with 
TT fonts wend from a frame each 2-5 seconds to a frame each 0.2 seconds 
about.

Now, before trying to extend it, I'd like to know if, introducing a way 
to enable/disable it by environ var OR registry entry it could enter 
current devel tree.

Ciao

Max