Update to reflect changes in EliasKotlyar / Xiaomi-Dafang-Hacks
Elias updated his Xiaomi-Dafang-Hacks using different MQTT topics.

See: "move mqtt snapshot to a different topic. Fix #1300" (https://github.com/EliasKotlyar/Xiaomi-Dafang-Hacks/commit/daf6de21485d044af6f399f2cc2fe8f316ec5f81)

Motion Detection is not working anymore... Please update your homebridge plugin :)