Refactoring and Added support to all Device Types

• Added support to all Device Types
• Added support to control On/Off state with external sensor
• Added support to custom buttons/commands
• Fixed all Issues/Request (#3 , #6 , #8 , #9 , #10 , #13)
• Added more configuration to each device
• Added candidate icons in docs folder for integration

Supported devices:

• Air Conditionair
  • Custom sensor for power status tracking
  • Custom sensor for temperature status tracking
  • Custom sensor for humidity status tracking
  • On/Off control
  • Min, Max, and Steps settings
  • Temperature control
  • Fan control
  • A/C Modes
• TV | IPTV | Streamer | Set Top Box
  • Custom sensor for power status tracking
  • On/Off control
  • Volume +/- and mute
  • Channel up/down (prev/fowd)
  • Channel number to source via service
• DVD | Speaker
  • Custom sensor for power status tracking
  • On/Off control
  • Volume +/- and mute
  • Play, Pause, Stop, Prev and Next controls
• Fan
  • Custom sensor for power status tracking
  • On/Off control
  • Buttons ION and TIMER in device settings
  • Fan Speeds (1,2,3)
• Light
  • Custom sensor for power status tracking
  • On/Off control
  • Brightness control (+/-) in device settings
  • Temperature light control (+/-) in device settings
• Air Purifier
  • Custom sensor for power status tracking
  • On/Off control
• Water Heater
  • Custom sensor for power status tracking
  • Custom sensor for temperature status tracking
  • On/Off control
• Vacuum Cleaner
  • Cleaning / Stop command
  • Go to Dock/Charge command
• Camera Shutter
  • Shutter buton
  • Timer buton
  • Menu buton
• Others
  • Custom sensor for power status tracking
  • On/Off control
  • Custom On and Off separated command in device settings

What's Changed

• Finished all devices types and refactoring by @joshepw in #14

Full Changelog: 0.2.1-beta.1...0.2.2-beta.2