* [fronius] Add support for Fronius Smart Meter
* [fronius] Use DTO, implement UoM
* [fronius] fix README.md
* [fronius] Add mandatory label for channel-type and fix property update
* [fronius] Store meterRealtimeBodyData instead of meterRealtimeResponse
Signed-off-by: Jimmy Tanagra <jcode@tanagra.id.au>