Split `fontique` into its own package. #13

Job	Run time
cargo clippy (android) (armv7-linux-androideabi)	33s
cargo check (msrv) (windows-latest)	56s
cargo check (msrv) (android) (armv7-linux-androideabi)	31s
cargo clippy (android) (aarch64-linux-android)	37s
cargo check (msrv) (macos-14)	28s
cargo clippy (windows-latest)	1m 11s
cargo clippy (android) (x86_64-linux-android)	43s
cargo check (msrv) (ubuntu-latest)	30s
cargo check (msrv) (android) (aarch64-linux-android)	37s
cargo clippy (macos-14)	35s
cargo clippy (ubuntu-latest)	33s
cargo check (msrv) (android) (x86_64-linux-android)	34s
cargo doc (windows-latest)	46s
cargo fmt	19s
cargo doc (macos-14)	23s
cargo test (windows-latest)	53s
cargo doc (ubuntu-latest)	21s
cargo test (macos-14)	24s
cargo test (ubuntu-latest)	29s
	11m 23s

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