Added new Multi-select Modal UI without filters
removed a comment
Intersecting list loader implemented
Added working relevant-to search fields based on the new IntersectingListLoader...
...when there is more than one relevance mapping being used
Re-enabling Search box for items to work with mapping filters
updated filter placeholder to show correct object name & some code cleanup
Reordered the search field to be last, and added proper type filtering to mapping search.
Merge pull request #1464 from reciprocity/feature/workflow-multiselect-ui

Added new Multi-select Modal UI without filters