Presenter mode: decouple slowing down from the highlight duration

[tkopra]

Is your feature request related to a problem? Please describe.
I would like to enable automatic element highlighting when running some long and complex tests. It can speedup debugging complex cases, together with test execution videoing. Presenter mode looked very promising but it cannot be currently configured to do just that. Apparently duration configuration introduces also similar length delay in each step. Sure there can be some confusion when page changes or scrolls after highlight when no delay but this disadvantage can be minimized by setting highlight duration just enough long to make it clear what element was used in test.

Describe the solution you'd like
It should be possible to separately configure delay (down to zero) and highlight duration. Also Selector Recorder mode should be possible to be disabled (existing enhancement request #4090) and any other delays removed (bug #4092).

Describe alternatives you've considered
Separate keyword(s) to enable each functionality independently. Like Set Highlight etc.