Fix Unit Test and YAPF Checker

* Add __init__.py for anritsu_lib to fix unit test
* Add yapf format command suggestion

Bug: 34692190, 34693209
Test: Unit test
Change-Id: Ief322be360e7f22f3efbe9ee73fa6f6f32b7864b
2 files changed
tree: e103d0bc00538d7ce3938c1a54b3b31cab4efaf3
  1. acts/
  2. tools/
  3. Android.mk
  4. PREUPLOAD.cfg