* Change ModifiersState to a bitflags struct
* Make examples work
* Add modifier state methods
* all things considered, only erroring out in one file throughout all of these changes is kinda impressive
* Make expansion plans more clear
* Move changelog entry
* Try to fix macos build
* Revert modifiers println in cursor_grab
* Make serde serialization less bug-prone
* X11: Fix incorrect modifiers when events are missed
* Syncs modifier state with state data in X key/button/motion events.
* Fixes modifier state in XWayland, as xinput2 raw input events will
not be received when a window does not have focus.
* Removes `impl From<_> for ModifiersState` on X11/Wayland API types,
replacing them with `pub(crate)` methods.
* Cleanup modifier state update using a macro
* Remove keys from modifier state when updating
