Eclipse grid views and contour maps are not longer a child of the case.
The views are not separate collections (one for grid and one for contour maps)
on root level.
* Enable cell filters
* Enable property filters
* Clean up fault collection interface and use similar setting for controlling filters as in intersection collection
* Enable cell/property filters on geomech intersections
* Enable cell and property filters for box intersections
* Refactor interface to PdmObjectHandle and PdmFieldHandle
Return objects instead of passing in structures as parameters
* Add nodiscard to several functions
* Remove redundant this->
* Rename to ptrReferencedObjectsByType