Included corresponding compressor in "utils/exporters/utf8" (prebuilt exe for Windows plus slightly modified C++ source code).

Use UTF8 format with caution, it is very neat but has quite a few limitations:

 - number of vertices < 65536 (this is after optimizations in compressor, input OBJ may have even less)
 - models must have normals and texture coordinates
 - texture coordinates must be only from <0,1>
 - no materials support yet
 - models are scaled and offset (copy numbers from compressor and use them as parameters in UTF8Loader.load() )