Add copy/paste keyboard shortcuts in result logs window, algorithms->execute, and Fit-function table

[Federico M Pouzols]

Very trivial thing: when you right click on the script interpreter window for example you get the usual copy and paste actions with their usual shortcuts. In the results log (and also algorithm->execute) you get a copy action but without shortcut. Other actions do have their shortcuts. Algorithm->execute is also missing a "Paste" shortcut. In the Fit-function table there's a similar issue in the text edit and spin box values.

[Stuart Campbell]

This ticket has been transferred to github issue ​11467