* Add and use time related constants
* Sort time constants and reuse them in data rate constants
* Fix greeneyemonitor import
* Fix greeneyemonitor import V2
* Fix failing here_travel_time test
* Add TIME_MONTHS and TIME_YEARS
* Use TIME_MINUTES in opentherm_gw and isy994
* Add and use TIME_MILLISECONDS
* Change inconsistent ones
* Add TIME_MICROSECONDS and TIME_WEEKS
* Use constants in apcupsd and travisci
* Fix import error in upnp sensor.py
* Fix isy994 sensor.py using TIME_YEARS
* Fix dyson tests
* Use TIME_SECONDS in more places
* Use TIME_DAYS in google wifi
* Fixes the buienradar component and add smoke tests
* Fix errors due to circular imports after imports were moved.
* Add smoke test so this situation will be caught in the future.
* Add buienradar.util to coveragerc
* Refactor tests to standalone pytest test function style
* Add __init__ to buienradar tests
* Consolidate
* Fix tests
* Update imports
* Fix import
* Use importlib because integration and package share name
* Fix more tests
* Update .coveragerc and CODEOWNERS