Armar6 pick and place

See merge request !29

Renaming Lvl0Controllers / Lvl1Controllers to JointControllers / NJointControllers (replacing names)

Renaming Lvl0Controllers / Lvl1Controllers to JointControllers / NJointControllers (renaming image files)Rename

robotunit: emergency stop master is now accesible from the outside to manipulate the emergency stop state

* 'master' of https://gitlab.com/ArmarX/RobotAPI:
  Remove unimplemented function generating a warning

Use armarx::GetTypeString instead of getTypeName from RobotUnit/util.h (and remove the later function)

Using this factor, joints can be moved at a lower velocity than one tic of the slider.

If on a reset (in pos or tor mode) the magnitude of the current value is smaller,
the target is set to 0.
This stops slow joint movements when switching from pos to vel mode (since there may be a small velocity due to noise)