Better names for `Current Frame Contains`, `Focus` and `Simulate`
Keywords listed on the summary are all somewhat badly named.
Current Frame Containsshould be renamed toCurrent Frame Should Containto follow Robot's general naming convention.FocusandSimulateare not explicit enough. Better names areSet Focus To ElementandSimulate Event.
We can add these new names in SL 3.0, but actually getting them changed isn't too urgent so we don't need to loudly deprecate them yet. We can do official deprecation in SL 3.1 and the remove them in SL 3.2 or later.