Include whitespace in separator when splitting keywords to 'trim' terms
We don't need to include the dimension name in the diemnsion summary, its required for condiguration only
Add support for including drilldown queries when searching
Add test cases for facet drilldown
Make test for single drilldown read better
Merge pull request #3 from aodn/2.10.x-imos-hierarchical-facets-drilldown

Add support for drilldown search parameters