Add ability to sort a data table by clicking a table heading

[tuckerconnelly]

Adds the ability to sort columns by clicking the table header. Accepts an onClick in the model, which will make the column clickable. Then, you can pass props.sortColumn and props.sortDirection into the <Table /> to get the up/down icon to display.

[javivelasco]

Thank you @tuckerconnelly I have been keeping this unmerges because the Table is already deprecated in favour of a more flexible version. We are keeping the 1.x in the master branch so if you think it's worthy feel free to open a PR there. Dev holds now the 2.0 beta with some rewritten components