Add tab-title

[redallen]

tab-title (#4146)

The title should be wrapped with <TabTitleText> for proper styling. If you would like to place an Icon in the Tab, it should be wrapped with <TabTitleIcon> for proper styling.

• title="string" -> title={<TabTitleText>Users</TabTitleText>}
• title={<SomeReactIcon/>} -> title={<TabTitleIcon><SomeReactIcon/></TabTitleIcon>}