Split `fontique` into its own package. #10

Job	Run time
cargo fmt	21s
cargo check (msrv) (android) (armv7-linux-androideabi)	37s
cargo check (msrv) (windows-latest)	1m 27s
cargo check (msrv) (android) (aarch64-linux-android)	38s
cargo clippy (windows-latest)	39s
cargo check (msrv) (macos-14)	41s
cargo clippy (android) (armv7-linux-androideabi)	48s
cargo check (msrv) (android) (x86_64-linux-android)	39s
cargo clippy (macos-14)	43s
cargo check (msrv) (ubuntu-latest)	41s
cargo clippy (android) (aarch64-linux-android)	48s
cargo clippy (ubuntu-latest)	36s
cargo clippy (android) (x86_64-linux-android)	48s
cargo doc (windows-latest)	1m 5s
cargo test (windows-latest)	1m 22s
cargo doc (macos-14)	38s
cargo test (macos-14)	36s
cargo doc (ubuntu-latest)	26s
cargo test (ubuntu-latest)	32s
	14m 5s

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