enh(ui): upgrade control.xml with optimization signal
Description
SGrabberProxy does have a optimize slot which is not accessible through the control.xml
Functional specifications
It shoul d be possible to call the SGrabberProxy optimize slot through the control.xml config
Technical specifications
add an optional optimizeGrabberIn channel in the control.xml config, and connect it to the grabberProxySrv/optimize.
Test plan
Test an application with the control.xml and try to require the optimize slot from the grabber.