Commit api tv

[piznel]

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Description of change

Fix issues, improves compatibility and news features :

• replace category 'Television' by 'television'
• change programMinus() / programPlus() : No more channel + or - 1 return, because channel are differents from programs TV.
• Adds programVOD() : for the TV box.
• Adds menuInfo() : an omission from the first version.
• Update the On/Off button with the associated devicetype, and adds status color (red, green)
• hiding the buttons of the TV box that are not used by the module that uses the TV API.
  (this features use the module.getMethods() PR Add modules.getMethods() #456 )