feat!: Add Docs<S> which wraps the Engine<S> #98

Job	Run time
Android Build Only (aarch64-linux-android)	1m 9s
Android Build Only (armv7-linux-androideabi)	1m 7s
Checking docs	1m 5s
Checking fmt	18s
check_semver	59s
Cross Build Only (x86_64-unknown-freebsd)	42s
Cross Test (i686-unknown-linux-gnu)	47s
cargo deny	34s
clippy_check	2m 7s
codespell	3s
Minimal Supported Rust Version	17s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	2m 32s
CI Test Suite / Tests (ubuntu-latest, stable, all)	1m 24s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	1m 3s
CI Test Suite / Tests (ubuntu-latest, stable, none)	26s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	1m 7s
CI Test Suite / Tests (ubuntu-latest, stable, default)	27s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	1m 26s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	33s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	31s
	18m 37s

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