- Fix `Timer::remaining` returning the time until next tick, instead of returning how late the tick is.
- Add methods to `Timer`: `late_by`, `period`, and `elapsed`
- [BREAKING] Remove `Scalar` and replace it with `f32`
- [BREAKNNG] Remove all uses of `impl Into<Vector>` in the public API
- Deprecate `Line`, `Triangle`, and a handful of `Shape` methods
- [BREAKING] Automatically re-set the viewport to the size of the window when `present` is called
- Actually add `ResizeHandler` to help with maintaing the same aspect ratio when the screen size changes