MOVE or Duplicate GUI CALLBACKS into DCS World EVENTS, so we can actually use them

[TEMPEST.114]

Specifically:
 

function onShowRadioMenu(a_h)
end

function onShowMessage(a_text, a_duration)
end

function onTriggerMessage(message, duration, clearView)
end

function onRadioMessage(message, duration)
end

function onRadioCommand(command_message)
end

 

And to that end - clearly show/link/explain what 'a_h' is and how that can relate to a specific PLAYER/UNIT.

There is ZERO reason why these should not be available inside the mission environment - esp as it would allow mission designers to have greater interaction between the mission/story and individual players.