Sml2mqtt

**BREAKING CHANGE**
- Almost complete rewrite, requires at least Python 3.10
- Extensive value processing which can be configured -> Config file changed
- Support for tibber pulse out of the box
- The analyze flag can also be set through an environment variable which makes it easier for docker users

Small config improvements

- Additional obis id for serial number matching
- Improved serial reading a bit

- Huge rework
- Docs now on RTD
- Docker image

1.2.2-fix
Fixed publish to pypi

- Added option to specify baudrate, parity, stopbits and bytesize for each port

- Add a config option `general` -> `device id obis` where an additional obis field for the serial number can be set
- Updated smllib