LatinIME: TRDS goes Slim

add trds changed files to provide new UI mode engine

Change-Id: I7eaf5e2229899c15afafde3f037bffd7191433b1

Fix: Small numbers inverted on keyboard from black

to ics blue with a bit alpha

Change-Id: I5d7bc83107c7de60f0381ace6f28426f07d705ab