New sensors, websocket and stability improvements

CLIP sensors

• support push events via websocket
• improved use in rules (ongoing)
• improved sensor creation and database maintenance

Sleeping end devices

• improved reliability in deCONZ core application
• fixed forgotten end devices issue in RaspBee/ConBee firmware

Websocket vent API

• events where extended and now include lights, groups and scenes state changes

REST API device support

Following sensors where added and are supported in the REST and websocket event API.

• Climax light, humidity and temperature sensor
• OSRAM Lightify motion and temperature sensor
• Xiaomi humidity and temperature sensor

Stability

• maintenance of the database was optimized to remove lots of unnecessary writes which could drain the sd-card
• fixed various crashes