Tom Baird

I'll do a merge, I would like to move away from using Role since it's being deprecated, so I'm trying to set Characteristics directly instead of converting from role to...

@renedamm should be good for re-review, moved to using Unity's unsafe & native array tools, improved the docs. Added 1 test, and was already using the existing IME event test...

@zite Do you remember the warning you were getting about overriding layouts?