v1.15.0-2

• ⚠️ Breaking changes
  • zigbee_shepherd_debug removed
• Add-on images are now taken from Docker Hub zigbee2mqtt organisation
• Changed mqtt.server, mqtt.user, mqtt.password to be optional
• Added support for mqtt auto discovery (server, user, password)
• Removed pm2
• Removed socat.restartdelay and socat.initialdelay
• Unified Dockerfile into a single common file
• ⚠️ Changed run.sh and socat.sh to use s6-overlay
• Version management now only in config.json
• Default data_path changed from /share/ to /config
• Changed default logging level to warn
• Changed version format to X.X.X-A