Thin out audio and haptic feedback while key repeat

.../android/inputmethod/keyboard/KeyboardActionListener.java

...rc/com/android/inputmethod/keyboard/MainKeyboardView.java

.../src/com/android/inputmethod/keyboard/PointerTracker.java

...roid/inputmethod/latin/AudioAndHapticFeedbackManager.java

java/src/com/android/inputmethod/latin/LatinIME.java

...id/inputmethod/latin/suggestions/SuggestionStripView.java