Recommend additions to qlog support

[larseggert]

It would be useful if qvis, when loading a qlog file, would recommend additional fields or other qlog features for the generating application to implement, in order to improve the visualization or better support qvis features.

[rmarx]

That's a good suggestion @larseggert, though short-term I will probably mainly add more README's per visualization to explain which fields they use.

Is there a concrete example you encountered that motivated opening this issue?

[larseggert]

Nope. I just keep wondering if I could improve my qlog support and how...