[Feature] Dynamic labels

[dzikimarian]

I think that would be helpful to have dynamic data in label text. Then if you have multiple tabs (eg. various temperature graphs in each of them). You can see current temperature directly in the label. That will save you some time if, at the moment, you need only current state and not full card.

I've provided sample implementation here: #92 - fell free to let me know, what do you think about it.

[kinghat]

thanks for opening the feature request. im going to move it to the discussion area were the other feature requests are held.