Move code only used for dicttool and tests under tests.

...rc/com/android/inputmethod/latin/makedict/FormatSpec.java

...c/com/android/inputmethod/latin/makedict/MakedictLog.java

.../android/inputmethod/latin/utils/DictionaryInfoUtils.java

...roid/inputmethod/latin/BinaryDictionaryDecayingTests.java

...droid/inputmethod/latin/makedict/AbstractDictDecoder.java

...tmethod/latin/makedict/BinaryDictDecoderEncoderTests.java

...id/inputmethod/latin/makedict/BinaryDictDecoderUtils.java

...id/inputmethod/latin/makedict/BinaryDictEncoderUtils.java

...android/inputmethod/latin/makedict/BinaryDictIOUtils.java

...c/com/android/inputmethod/latin/makedict/DictDecoder.java

...c/com/android/inputmethod/latin/makedict/DictEncoder.java

.../android/inputmethod/latin/makedict/FusionDictionary.java

...c/com/android/inputmethod/latin/makedict/MakedictLog.java

.../android/inputmethod/latin/makedict/PendingAttribute.java

...rc/com/android/inputmethod/latin/makedict/PtNodeInfo.java

...m/android/inputmethod/latin/makedict/Ver2DictDecoder.java

...m/android/inputmethod/latin/makedict/Ver2DictEncoder.java

...m/android/inputmethod/latin/makedict/Ver4DictDecoder.java

...m/android/inputmethod/latin/makedict/Ver4DictEncoder.java

.../android/inputmethod/latin/utils/ByteArrayDictBuffer.java