Removed responsive text render system.
Stubbing out 3D systems and components.
More stubbins.
Use cross-product to find tangent.
Shape3D compile fixes.
Template qualifiers for lerp.
Cleaning up 3d stubs.
Getting closer to a working 3D entity base.
TextureAtlas convenience methods.
TexturePacker skips oversized images.

Logs a warning.
Account for padding in bailout.
Bail before calculating anything.
Surface and Channel paths into TextureAtlas.

Enables luminance-alpha textures which use 1/4 the memory of RGBA.
Support for custom data in sprite definition.
Update sample code root creation.