Rename detectors to assertors

Rename the FASS components that detect the errors from detectors to
assertors because "detectors" sounds like "detect transitions".

Bug: 198769408
Test: atest FlickerLibTest
Change-Id: Id02b16746e791d6aec690a4803bd86e8995c2872
7 files changed
tree: e3642a0e963011c285658dc458d202be1ecbc641
  1. build/
  2. docs/
  3. emu_test/
  4. libraries/
  5. scripts/
  6. tests/
  7. utils/
  8. PREUPLOAD.cfg