Removed IndexBufferAttribute. Promoted index attribute to BufferGeometry. Maybe .addIndices() instead?
/ping @benaadams

/ping @benaadams

renamed webglproperties method names. Now correctly accounts for interleaved attributes sharing buffers

TO DO: *NeedsUpdate, CustomAttributes, Skinning, MorphTargets.

Remove unneeded function calls, rearrage for fused multiply–add, remove
excessive shader whitespace

Added both intanced and non instanced interleaved bufferedGeometry

add ambientocclusion glsl shaders.  Separate out uv/uv2 vertex and fragment shaders to make things cleaner.

Hardware instancing using ANGLE_instanced_arrays for BufferedGeometry

adopt common.glsl shader utilities across all shaders where applicable.  Fix vec*matrix bug in envmap_fragment.glsl

(three.js issue: #5552) add BinaryTextireLoader.js, RGBELoader.js (plus example), TGALoader.js extends BinaryTextureLoader.js

Also trying to only call gl.getExtension() when needed.