Import 3D model information, type 0x0F

[dertseha]

Import the information about 3D models from TSSHP.
Verify with the original implementation what already worked.

[dertseha]

I had a look at the obj3d documentation of TSSHP, worked on a simple tool to verify the format - crosschecked with the implementation and found a few errors.
This documentation is now nearly complete, though I still want to verify it with a proper implementation in the res module.
Also, the documentation on the "special" handling of 0 textured faces is missing.

[dertseha]

The original intent of this issue has been satisfied. The geometry format has been imported, clarified & updated, and verified with an implementation.
Details are still pending, these are handled in #35 and #36 .

[dertseha]

After writing the export function in chunkie it became apparent that the fixed values are not 32/8 values, but 32/16 values. Models were way to big and the U/V coordinates beyond ranges of 0..1 .
Now everything fits together.