[REQUEST]: Allow to duplicate entries in conformance view

[loic-joly-sonarsource]

Is your feature request related to a problem? Please describe

Very often, with working with conformance view, I work with different versions of the same compiler, all options are the same. Or I work with different C++ standards, with the same compiler and the same options (exception for this one). Or...

Right now, to add a new compiler in the conformance view, I have to start from an empty line each time.

Describe the solution you'd like

A button on the right hand side of each line allows to clone the line. The new identical line is put right after the cloned one.

Describe alternatives you've considered

Not applicable

Additional context

Not applicable

[partouf]

Seems reasonable. Whenever I was using confview I experienced similar annoyances. Don't think it's difficult to add either.

[dead-tech]

I would be glad to work on this 😄

[RubenRBS]

Closes by the linked PR a few months ago, but we missed the issue! :)