removing stuff from aggregate

The aggregation events of the geographical extent (which is linked to the viewport) are now tools. We want this to be the default set of cards.

Problem: There is no central place to store stuff that concerns the applications geographical extent.


TODO:
- [ ] Move raster aggregate `getRasterData` functions to `RasterService`
- [ ] Create data model in `MasterCtrl` which contains the different aggregate data sets
- [ ] Have the data update itself at Pan and Zoom events