Added function endmission()

Works only with MissionFile version=3
Created for MissionController, but works on any bot
- 1st parameter:
* ResultWin - win mission
* ResultLost - lost mission
* ResultLostQuick - lost mission (Me died)
- 2nd parameter: win/lost delay, like in mission file. Doesn't work for ResultLostQuick.
Please don't use for cheating =)