New crate with something like Bevy's `ButtonInput`?

[waywardmonkeys]

Something like Bevy's ButtonInput but using PointerButtons instead of a HashSet<PointerButton> and think about Code vs NamedKey and so on.

Reference:

• Ideas & Thoughts on Design for Keyboard Input bevyengine/bevy#12569

[waywardmonkeys]

I have a draft of this locally. cc: @xorgy