Update CRC dataset form to include prompts

hyrax/app/views/records/edit_fields/_coverage.html.erb

 <% service = CoverageService.new %>
 <%= f.input :coverage, as: :select,
+            prompt: 'Choose Coverage',
             collection: service.select_all_options,
-            include_blank: true,
             item_helper: service.method(:include_current_value),
             input_html: { class: 'form-control' }
 %>

hyrax/app/views/records/edit_fields/_crc_resource_type.html.erb

 <% service = CrcResourceTypeService.new %>
 <%= f.input :crc_resource_type, as: :select,
+            prompt: 'Choose CRC Resource Type',
             collection: service.select_all_options,
-            include_blank: true,
             item_helper: service.method(:include_current_value),
             input_html: { class: 'form-control' }
 %>

hyrax/app/views/records/edit_fields/_modality.html.erb

 <% service = ModalityService.new %>
 <%= f.input :modality, as: :select,
             collection: service.select_active_options,
-            include_blank: true,
+            include_blank: "Choose one or more...",
             item_helper: service.method(:include_current_value),
             input_html: { class: 'form-control', multiple: true }
 %>