Create a new directory for layout-related implementations

native/jni/Android.mk

...ve/jni/com_android_inputmethod_keyboard_ProximityInfo.cpp

native/jni/src/correction.cpp

native/jni/src/correction.h

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

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

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

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

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

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

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

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

...ni/src/suggest/core/layout/proximity_info_state_utils.cpp

.../jni/src/suggest/core/layout/proximity_info_state_utils.h

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

...src/suggest/core/layout/touch_position_correction_utils.h

native/jni/src/suggest/core/session/dic_traverse_session.h

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