Book-button
The optimizer was not using the time-slot and weekdays within the placement.
Now these values are added dynamically to the inventory as additional filters.
Also added content-title and content-utc to the spot-view (relevant for placement).

Optimization strategy:
- None
- Min. listprice1
- Min. listprice2
- Min. mediagross
- Min. GRP
- Min. spots
- Min. CPG
- Min. sparelength
- Max. listprice1
- Max. listprice2
- Max. mediagross
- Max GRP
- Max. spots
- Max. CPG
- Max. sparelength
Optimization use distribution:
- don't use daily target
- just as target
- just as limit
- limit and target
- as target and exceed allowed
- as target and limit, exceed allowed
- as percent