Initial materials
Documentation material browser
Revert material files copy tweaks
Merge in upstream
Additional functionality and cleanup for material viewer
Added morphs, vertex colors, and face colors
Material browser - added texture maps
hook the loading manager in STLLoader.js
rm comment
Geometry.clone() clones all UV layers
implement XHRLoader in STLLoader.js
update STLLoader example
Format code mrdoob style
Fix spaces
Merge pull request #5685 from xswordsx/dev

Geometry.clone() clones all UV layers
Geometry: Cleaned up clone().
Updated builds.
Merge pull request #5683 from zinefer/dev

Implement XHRLoader in STLLoader.js
Loaders clean up.
Minor tabs to space tweaks.