Amshan

This release adds type DlmsMessage.

This release add support for reading data from meters publishing P1 data.

A lot of breaking changes.
- SmartMeterFrameProtocol has been renamed SmartMeterMessageProtocol and supports multiple reader typed
- SmartMeterFrameContentProtocol has been renamed SmartMeterMessagePayloadProtocol and supports multiple reader typed
- Connection factories has been renamed.
- namespace has changed from amshan to han

This release add support for reading data from swedish Aidon, Kamstrup, and Kaifa meters publishing DLMS/COSEM data.

Breaking change: obis_map.NEK_HAN_FIELD* constants has been renamed obis_map.FIELD*

**Full Changelog**: https://github.com/toreamun/amshan/compare/1.0.2...1.1.0-beta

**Full Changelog**: https://github.com/toreamun/amshan/compare/1.0.0...1.0.1