Enhancements to Events

Improved documentation in PickupEvent and PutDownEvent.
Added StandUp() method to Pose.cs
Added the putDown and Stand Up radio buttons to the NaoDebugger.
Merge branch 'master' of https://github.com/boschbc/NaoRobot

Conflicts:
	src/Event/GoalToNao/PickupEvent.cs
	src/Event/GoalToNao/PutDownEvent.cs