[keymap.mqb] changed in "WizardActions" flags for key: Exit and ESC

- set key: exit and esc into flag´s (break)
its so now possible for plugin (MediaPortal -> SimpelPlayer) to make an screenshoot without infobar/simpelinfobar with show effect with simpelinfobar....

example:
- if simpelplayer is running 
- press pause key
- press exit key and select (no) or press also exit key