LatinIME: TRDS goes Slim

add trds changed files to provide new UI mode engine

Change-Id: I7eaf5e2229899c15afafde3f037bffd7191433b1

Conflicts:
	java/res/drawable-inverted-hdpi/btn_keyboard_key_dark_normal_holo.9.png
	java/res/drawable-inverted-hdpi/btn_keyboard_key_dark_normal_off_holo.9.png
	java/res/drawable-inverted-hdpi/btn_keyboard_key_dark_normal_on_holo.9.png
	java/res/drawable-inverted-hdpi/btn_keyboard_key_light_normal_holo.9.png
	java/res/drawable-inverted-xhdpi/btn_keyboard_key_dark_normal_holo.9.png
	java/res/drawable-inverted-xhdpi/btn_keyboard_key_dark_normal_off_holo.9.png
	java/res/drawable-inverted-xhdpi/btn_keyboard_key_dark_normal_on_holo.9.png
	java/res/drawable-inverted-xhdpi/btn_keyboard_key_light_normal_holo.9.png