Promote information to be shown on instance label in Publisher

[antirotor]

We need to be able to display more information on instance label in publisher than just it's name.

In this case for example renderCompositingMain could show there also frame range or some badge that review will be created.

What information shown there could be decided by plugins themselves. But how to solve conflicting interests, available ways to show things, etc. is up to the implementation.

[cuID:AY-2474]

[dee-ynput]

Related to #167 but not linked (yet?)

[iLLiCiTiT]

Should the value change based on changes in creator attributes?
Should be the label stored in scene?
Do we have any other use-case in mind?

[BigRoy]

Should the value change based on changes in creator attributes?

Yes, please.

Should be the label stored in scene?

I'm fine with the creator being able to compute/define it dynamically.

Do we have any other use-case in mind?

It may be more than 'label' but just showing metadata like start frame, end frame, colorspace or whatever would be nice to 'promote' and visually show on the instance for easy debugging. However, once we go down that route I feel we may first need some 'redesign' to pinpoint WHAT makes sense in design?