Add popup view mode
Case 4175 - dont show not reservable or not phisical items.
Case 4175 - show reservation buttons on popup open.
case 4175 - Various features. Added new view modes.
Merge branch 'case-4175' of github.com:easyddb/ding_collection_reservation into case-4175

Conflicts:
	ding_collection_reservation.module
case 4175 - Added exports.
Merge branch 'case-4175' into development