Add pause notification event for Control that uses component groups

[AndreasHefti]

This feature shall allow to globally pause controlled components by component group identification.

• Create new PauseEvent with PAUSE and RESUME and an optional component group aspects criteria to be able to pause on specific group(s)
• Implement the pausing functionality for in Control to be used for all controls
• Implement the pausing functionality for Entity and Component controls to check also individual controlled components is in paused group.
• For a PauseEvent PAUSE with no additional group attributes, all controls shall be paused.