Paginated indexed fields list

Use `paginated-table` for the indexed fields list. 

Some changes to `kbn-rows` and `paginated-table` as well, to handle rows that contain more than just data.

- When `kbn-row` finds content that is an object, it'll wrap `object.markup` in `$` and append it as HTML
- When `paginated-table`'s sorter finds a row that is an object, it will sort using `object.value`