LatinIME: Add keyHintLabels to all keys in qwerty

This adds a second function to every key. I used the
same second function layout as the keyboard from cm.
We could change this easily if a different layout or
set of keys is desirable.

Change-Id: I4ad2537f822bc60f1be4eec77acf8f84f8fdd4de
Author:    Quinten Johnson <joh07467@gmail.com>