Cleanup warnings
semver crate_id, unweird name
remove unnecessary inlining

these are all generic or internal anyway, so it doesn't matter
remove commented out sections.

it's in the git history, no need to comment out
Remove unnecessary + useless lifetimes
Break ease into its own file
More idiomatic repo layout
Update README; wrapping; example movement
cargo-lite support
Make repo layout even more idiomatic, update lots of things in lib.rs (previously tween.rs)