[1.1.x] Python scripting: Global SCREEN object does not inherit global FindFailed settings

******************** workaround
After changing the global settings, you have to use
setFindFailedResponse(...)
setFindFailedHandler(...)
with the same settings, to update the settings of global object SCREEN

Another option is, to use
SCREEN = Screen()
afterwards, to force a recreation of the global SCREEN object.
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When using
FindFailed.setResponse and/or FindFailed.setHandler

to specify some global FindFailed handling, then these global settings will not be inherited by the global SCREEN object, because this is instantiated once at IDE start or before scriptrun from commandline.

By design, these settings are only inherited by region objects newly created during scriptrun.

We need a feature to tell SCREEN, that the global FindFailed settings have changed.