Add a label for Date/Time search to CKAN results display

[mwengren]

This is a minor point, but in order for consistent functionality, it would be nice to add a filter label when a date filter is applied.

Currently, this happens for the other Solr facets in the left hand filter menus, but for date/time filter, it does not. Also, it allows for consistent ways to eliminate filters (you can click on a label to remove the filter).

This link shows an example with a Data Provider filter and a date filter, but only a label for the Data Provider.

[mwengren]

Consider adding labels for Depth filter functionality as well, if possible.

[benjwadams]

Time is more akin to the spatial selector, which doesn't use a label, in that a range is being selected, rather than a simple filter against certain key/value pairs.