Fix font resizing issues, looking up appropriate Harfbuzz scaling.

Propagate bugfixes to Harfbuzz-Pure.

Incorporate OpenGL & FreeType memory management into cached API.

Claim credit.

Test and fix rendering of consecutive newlines.

Code cleanliness fixes, propagate exceptions, & add more spatial transforms.

Get multiline text rendering working.

It turns out that the font-features list was cutting short the text-lines list.
So now the font-features list is infinite so the text-lines list cuts it short!

Document everything and get test code working again!

Integrate richtext APIs.

Expose richtext builder API.

Add nicer API for specifying font features!

Resurrect optimizations using Vectors for lists.

Fix rangechecks around fontfeatures.

Fix font-feature support, simplify API, & add type signatures.

Commit missing module dealing with uncached fonts.

Fix compilation issues with restructure back to Typograffiti's original.

Draft cached text rendering API.

Draft public API akin to existing Typograffiti API.

Start refactoring to resemble existing Typograffiti structure.

Fix text rendering.