Add MLTS image classification dataset.

Image classification dataset consist of 80 images sourced
from wikimedia commons, distributed under one of following
licenses:

- Creative Commons Attribution 2.0 Generic
- Creative Commons Attribution 2.5 Generic
- Creative Commons Attribution 3.0 Unported
- Creative Commons Attribution 4.0 International
- Creative Commons Attribution-Share Alike 2.0 Generic
- Creative Commons Attribution-Share Alike 2.5 Generic
- Creative Commons Attribution-Share Alike 3.0 Unported
- Creative Commons Attribution-Share Alike 4.0 International
- Public Domain

Bug: 112572024
Test: NeuralNetworksApiBenchmark
Change-Id: Iea8748c965c368c6f06caf64d8d337b5b50800de
Merged-In: Iea8748c965c368c6f06caf64d8d337b5b50800de
(cherry picked from commit b1ecd447742e9ac6817731f9805c39a64e4b59e8)
97 files changed
tree: 6319158623032c2c268428d3e326f66b445e8eff
  1. assets/
  2. LICENSE
  3. OWNERS
  4. README.txt