0.7.0

• Add support for a new device category and devices: watering systems DI-2/DI-3 (Automatic Watering System 2.0)
• Status models adjusted
  • LetPotDeviceStatus now contains the status info common to all device categories
  • Device category specific status info uses specific classes extending LetPotDeviceStatus: LetPotGardenStatus (all status info previously included in LetPotDeviceStatus) and LetPotWateringSystemStatus
• Converters list adjusted
  • CONVERTERS now contains all the converters for device types provided by this library
  • Device category specific converters can still be accessed using specific lists: GARDEN_CONVERTERS (all converters previously included in CONVERTERS) and WATERING_SYSTEM_CONVERTERS