cgltf 1.11

• Added support for KHR_texture_basisu.
• Added support for files > 2GB.
• Added extras data to lights.
• Added a flag for the texture transform's texcoord to be able to tell if it's actually present.
• Fixed memory possibly being freed using the wrong function (when parsing base64 data and/or file data).
• Fixed light default values when loading.
• Fixed writer to write light diffuse factor correctly and only write alpha cutoff when using alpha mask mode.