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
Update ShadowingTypes.html

Spelling error
hook the loading manager in STLLoader.js
rm comment
Merge pull request #5681 from sheriffderek/patch-1

Update ShadowingTypes.html
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