Guard the remaining unguarded legendConfig() uses so a null legend config
cannot crash: both updateLegend() implementations (eclipse and statistics
projections) now capture the pointer and return early when null, and the
statistics view tree ordering skips a null legend config.
Replace reference members and constructor parameters with raw pointers in
RigContourMapProjection and subclasses. Remove cvf::ref usage in
RigEclipseContourMapProjection. Add updateRealizationData() to allow
swapping active cell info and result data per realization without
rebuilding the grid mapping.
Magne Sjaastad
jonjenssen
jonjenssen