There are field properties that can usually be queried even if they
are not explicitly specified in the input
file (e.g. PVTNUM). Unfortunately, the ParallelEclipseState cannot
forsee which of these will be queried at startup and after the
loadbalancing only the master process is able to auto creates
these (easily). Hence this commit uses a fall-back if an unstored
keyword is queried. In this case we use get_global-* to auto create
the keyword and use functions of the cartesian mapper to extract the
relevant values on the process.
Of course this temporarily wastes space and we might want to resort to
a more memory savy approach later.
The created data handle for the communication could in theory be used
with other DUNE grids, too. In reality we will need to merge with the
handle that ALUGrid already uses to communicate the cartesian indices.
This PR gets rid of using the get_global_(double|int) method in
ParallelEclipseState and reduces the amount of boilerplate code there.
these are wrappers sitting on top of the EclipseState and
FieldPropsManager classes.
The former has some additional methods related to parallelism,
and the latter is a parallel frontend to the FieldPropManager which
only hold the process-local data (in compressed arrays).
