This change makes sure that we load all mipmaps present in the .basis
file. This is important for multiple reasons, one of them being that to
use .basis files in glTF out of the box, the texture has to have a
complete mipchain (otherwise the texture is incomplete as per WebGL spec
and sampling this texture returns (0,0,0)).

Contributes to #16524.

WebGLRenderTarget: add image.width/height to texture property

WebGLTextures: CubeTexture from CompressedTextures signature bug

JSM: Added module and TS file for ToonShader.

Update basis transcoder

JSM: More modules and TS files for loaders.

Examples: Clean up

JSM: Added module and TS file for SkinShader.

TS: Fix matcap attribute of MeshMatcapMaterial

JSM: Added module and TS files for SelectionBox and SelectionHelper.

JSM: Added module and TS file for GodRaysShader.

RGBELoader: Set encoding based on output type

rework shader compile/link error checking

Simplify WebGLLights hash value

JSM: Added module and TS file for TranslucentShader.

JSM: Added module and TS file for TerrainShader.

JSM: Added module and TS file for CurveExtras.

Apply clipping planes in normal material

missing ] in WebGLRenderer docs

It was useful for making sure that clipping planes work as intended for normals when initially implementing the fix, but it's not a very natural fit for the example.

Docs: Improve WebGL2 guide.

Docs: Updated color for title & refined type sizes.