Tim Knip ac756bed05 fix texture paths and parse texture map options
When the mtl has statements like ```map_Bump -bm 0.2 ./foo.jpg``` then
the options end up in the texture path.
eg: ```./-bm 0.2/foo.jpg```.

This commit fixes the path and parses the options.
2017-09-29 19:31:14 +02:00
..
2017-07-24 09:36:45 -04:00
2017-07-24 09:36:45 -04:00