Add switches to skip and ignore checkstyle.
Add switches to skip and ignore checkstyle.

This should probably go to airbase in the long run. This allows a
submodule to set air.check.fail-checkstyle to false for development,
therefore no longer need to constantly reformat and optimize the code
while developing.

bd-dev-mobileum/presto,bd-dev-mobileum/presto,bd-dev-mobileum/presto,bd-dev-mobileum/presto,bd-dev-mobileum/presto