Refactor test scripts.

Move helper classes to test_helper folder. Only test case files
in the first level.

Test: atest -v CtsSeekerDiscoverProviderTest
BUG: 214015364
Change-Id: I088adcb647d01ac558ce7dd1fea880821d59028e
6 files changed
tree: 1a93594e4f6fe8534797a7055937bc71138916ce
  1. nearby/