This commit extends the 'maxGroupSize' function to also consider the
sizes of node groups (i.e., the number of child nodes/child groups)
when determining what the largest group size is on a particular step.
Add a unit test to demonstrate.
This commit introduces a new function,
Opm::checkConsistentArrayDimensions()
that inspects various dynamic array/table sizes and compares those
to the maximum dimensions requested in the relevant *DIMS keywords
of the RUNSPEC section.
At present we check only items one through four of WELLDIMS since
those are directly relevant for the ECLIPSE-compatible output code.
We leverage the ErrorGuard to integrate into the existing mechanism
for terminating a simulation run if there's a parse failure.
