Hopefully without unintentional changes to functionality. This renames header
files to .hpp, imposes a gltf/raw/fbx directory structure, extracts standalone
chunks of Fbx2Raw into distinct files, and undoes some particularly egregious
mistakes from when I knew even less C++ than I do now.
This is in anticipation of implementing 3ds Max's "Physical Material".
Previous to this, a PNG that was on RGBA format would cause its
corresponding texture to be flagged as transparent. This is very
silly. We now iterate over the bytes, and if any is not 255, THEN
there's alpha.
Pär Winzell
Pär Winzell