add the possibility to include child element next to the label of each tab

[AntonioFeregrino]

Is your feature request related to a problem? Please describe.
Sometimes it is necessary to add a status (child element) to the side of the tab label, to provide additional information.

Describe the solution you'd like

One could add an additional prop to place the secondary element, and as an added bonus, one could also allow receiving styles directly from the 'style' property for the tab