Move util classes to the latin/utils directory

...nputmethod/accessibility/AccessibilityEntityProvider.java

...android/inputmethod/accessibility/AccessibilityUtils.java

...d/inputmethod/accessibility/KeyCodeDescriptionMapper.java

...c/com/android/inputmethod/compat/SuggestionSpanUtils.java

...c/com/android/inputmethod/dictionarypack/ActionBatch.java

...utmethod/dictionarypack/DictionaryListInterfaceState.java

...ndroid/inputmethod/dictionarypack/DictionaryProvider.java

.../android/inputmethod/dictionarypack/MetadataDbHelper.java

...com/android/inputmethod/dictionarypack/UpdateHandler.java

java/src/com/android/inputmethod/event/EventInterpreter.java

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

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

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

...c/com/android/inputmethod/keyboard/KeyboardLayoutSet.java

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

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

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

...om/android/inputmethod/keyboard/MoreKeysKeyboardView.java

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

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