Show only relevant cards

Part of RFC #36 

Situation
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extentAgg en pointObject gather all available information which is displayed fully by their templates. This creates an information overload for users and it does not fit in the current paradigm to display information after user action.

Problem
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Box.type is set > inserts template > instantiates a  controller > controllers gathers all data. Then, the controller may deactivate part of the data *pointObject.rain.active = false*, but this is lost when the controller is reinstantiated. Therefore the priority of different sets of data should be stored on a higher level. Either a service or on a model on the masterController. This priority can be either a boolean or z-index like property.

Actions
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- [x] Create a service to store the priority of cards.
- [x] Gather data on the basis of these priorities.
- [ ] Set these values from the extentAgg en PointObject controller.