Set the code coverage test threshold to 80% overall, 5% diff (#361)
Set the code coverage test threshold to 80% overall, 5% diff (#361)

* Set the code coverage test threshold to 80% overall, 5% diff

* Fix codecov.yml format

wvlet/airframe,wvlet/airframe,wvlet/airframe,wvlet/airframe,wvlet/airframe