aiolifx

Thanks to @Djelibeybi for PR. Needed for HA

PR from @bdraco and @Djelibeybi thank you.
Removed deprecation warning from console script
ran black on sources

Improved way to report support for HEV. A few improvement in the aiolifx script, mostly error handling.

Thanks to @Djelibeybi for his PR

Thanks to @Djelibeybi for his HEV PR.
Bumped version to 0.8.0

Solved issue #46

Thanks to Anders Melchiorsen for the PR.

Breaking change: type of self.host_firmware_version changes from float to string.