Remove Dict dependency on WordComposer and ProximityInfo

...rc/com/android/inputmethod/latin/common/ComposedData.java

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

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

...c/com/android/inputmethod/latin/DictionaryCollection.java

.../com/android/inputmethod/latin/DictionaryFacilitator.java

...android/inputmethod/latin/ExpandableBinaryDictionary.java

...m/android/inputmethod/latin/ReadOnlyBinaryDictionary.java

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

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

...utmethod/latin/spellcheck/AndroidSpellCheckerService.java

...s/DistracterFilterCheckingExactMatchesAndSuggestions.java

tools/dicttool/Android.mk