Implement Stylist traits for FontConfig patterns!

Improve memory safety & error checks.

Expose font weight adjustments & correct current-config refcount.

Finish initial redraft

Write init/finalize & pattern language bindings, haskell-side!

Draft C-side wrappers for various FontConfig APIs.

Continue implementing C-side language bindings.

Implement a scanner on C-side (LibCMP doesn't provide it).

Fix C code, it compiles now!

Encode & decode FontConfig data on C side.

Encode & decode charsets on C side (fix Haskell side)

Initialize C components, including vendored CMP

Datamodel FontConfig in Haskell.

Start rewrite from scratch.