MDLX/MAP's VIF read and write support #81
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This pull request adds support to parse, modify, write back or create a VIF for a MDLX or MAP files. Essentially the format that is responsible to send to the GPU the polygons. The VIF is the type 4 of a MDLX/MAP, which I want to remember it is just a BAR file with a different extension.
I also want to make aware that there is no documentation (yet) in this pull request. This is due to many unknown fields and the fact that I still do not understand how the game consumes those VIFs. Writing a documentation would be just a raw write of assumptions, potentially incorrect.
While I realize that the code is left in a quite raw state, I would like to merge it in master as it is so it can be studied and improved by other people.