Enhancement: Allow React elements in DataTable.TableHeader (#941)
Enhancement: Allow React elements in DataTable.TableHeader (#941)

* Enhancement: Allow React elements in DataTable.TableHeader

* Enhancement(DataTable): Set children of TableHeader to be type node

* Enhancement(DataTable): Set children of TableHeader to be type node

joshblack/carbon-components-react,carbon-design-system/carbon-components-react,carbon-design-system/carbon-components,joshblack/carbon-components-react,carbon-design-system/carbon-components-react,carbon-design-system/carbon-components,carbon-design-system/carbon-components