Move char_utils to the dictionary directory

native/jni/Android.mk

native/jni/src/bigram_dictionary.cpp

native/jni/src/correction.cpp

native/jni/src/correction.h

native/jni/src/suggest/core/dicnode/dic_node.h

native/jni/src/suggest/core/dicnode/dic_node_utils.cpp

native/jni/src/suggest/core/dictionary/binary_format.h

native/jni/src/suggest/core/dictionary/char_utils.cpp

native/jni/src/suggest/core/dictionary/char_utils.h

native/jni/src/suggest/core/dictionary/digraph_utils.cpp

native/jni/src/suggest/core/layout/proximity_info.cpp

native/jni/src/suggest/core/layout/proximity_info_state.cpp

native/jni/src/suggest/core/layout/proximity_info_state.h

native/jni/src/suggest/core/layout/proximity_info_utils.h

native/jni/src/suggest/core/policy/weighting.cpp

native/jni/src/suggest/core/suggest.cpp

native/jni/src/suggest/policyimpl/typing/typing_traversal.h

native/jni/src/suggest/policyimpl/typing/typing_weighting.h

...licyimpl/utils/damerau_levenshtein_edit_distance_policy.h

native/jni/src/unigram_dictionary.cpp