Export libtextclassifier

ExtServices APK now preloads universal model.
We mmap the model file straight from the APK, so we can't
compress those files when packing them to the APK.
Added "-0 model" as the appt flag to do so.

Bug: 169395238

Test: atest -p external/libtextclassifier

Change-Id: I3d59ec717a14f71be653159ecc7dd3e87bc9a80e
62 files changed