[0.2.1] LDForge

[Santeri Piippo]

Now I opened an existing file that has a good BFC winding (52038.dat) but LDForge gives only red surfaces except the studs.
I think here should be done a little bit.

The BFC support is currently rather primitive, it mostly assumes everything is CCW and doesn't manage INVERTNEXT within subfiles either. I plan on rewriting the BFC support but that's not possible with the current level of GL-fu involved. After 0.3 I'm planning on upgrading to VAO's which should allow for proper BFC support.

As for that weird crash mentioned I'm not sure what to think about it. I can open the subpart just fine, and there's massive beneath-the-hood changes in 0.3 anyway, so I guess all I can do is hope it'll behave better once 0.3 is out.