Refactored to handle cases generically in a lot of places.
Mostly complete regarding all these issues, but not tested yet:
Assigning caseId
Update relative path to the case data
RimProject::createDisplayModelAndRedrawAllViews
RimProject::computeUtmAreaOfInterest
Load case data on project open
save snapshots for all views
RegressionTest viewer size
Finding case based on caseId
Giving case information to octave
To make room for a RimCase base class that can be used as base class for
RimGeoMechCase as well.
This commit is only the class rename not the file rename.
Added one common class used to transfer data using socket. This class is
used both from the Octave plugins and from the socket server code in
ResInsight
