Write data to welltargetdata.GRDECL in a subfolder of the project. Import this data when project is load. The data in this cache is owerwritten when the project is saved.
Improvements:
* Well Target Candidates: Add filtering by binary result
* Well Target Candidates: make result grid cell count configurable.
* Well Target Candidates: Improve ui ordering.
* Well Target Candidates: compute probability, and simplify vector names.
* Optimization: Avoid expensive unintended duplication of data
