Add texture support

[CptWesley]

[osen]

Hello,

Just wondering if you had any time / interest to implement this feature?
There is a strange lack of .map to .obj converters and this one looks really nice and simple.
If texture coordinates could be correctly generated then this tool greatly simplifies our workflow :)

Great work and thanks!

[CptWesley]

@osen Unfortunately I currently don't have enough spare time to work on this feature, but I might take a look at it again in July if I don't forget about it!

[osen]

OK, thanks. Looking through it, you have implemented the hard parts involving intersecting the planes. From your work here, I will probably spend some time implementing this myself.

Just one last question before I do. Do you know of any open-source command-line tools that already does this?

Thanks :)

[CptWesley]

@osen I know of one tool that converts .map files to .obj files, but it does not support textures, inverts all planes, inverts some axis and does some other weird things (reason why I decided to create this). So unfortunately I don't know of any.