* Add OpenTherm Gateway sensor platform.
* Add OTGW_ variables to list of supported sensors.
* Order imports.
* Add OpenTherm Gateway binary sensor support.
* Revert "Add OpenTherm Gateway binary sensor support."
This reverts commit 115acaa912.
* Import COMP_SENSOR from sensor component rather than defining it.
* Update opentherm_gw sensor platform docs url.
* Update dependency to v0.2b1
Old version had incorrect variable names for some of the sensors
* Update requirements_all.txt
* Address review findings.
* Update .coveragerc