Add access to display info irrespective of right-click position

[georgweiss]

Accessing display info from context menu item can be tricky if the OPI is very busy or if it uses a symbol widget as a background.

This PR adds a menu item for the display info regardless of where user clicks, see screen shot. In case user actually clicks in a position where no other widget is in the foreground, the additional context menu item is not added.

[georgweiss]

@kasemir, @shroffk, I'd appreciate if you can add your input.

[kasemir]

Looks like this is really a 10 line change, but since it updates the formatting of the whole file, it's harder to read.

[georgweiss]

Yes, Cmd + Option + L in IntelliJ can be deceptive...
Do you need me to revert formatting in order to review?

[kasemir]

Well, yes, I would appreciate that.

[georgweiss]

@kasemir, updated as requested.

[kasemir]

Thanks! When I look at the "Files Changed" section on github, the formatting is still all changed, which doesn't line up with the "Reverting formatting" commit. I'm assuming that's a github rendering issue, so go ahead.

[georgweiss]

"Go ahead" as in....?

[kasemir]

.. merge?

[georgweiss]

Asking for the record.

[kasemir]

Well, looks like it didn't revert the formatting in the end. You win.