Add PassArrays to Essentials

Change-Id: If89f171706c4a8a03e90b2e741063f946860e9f7
Link PVVTKExtensionsRendering with MPI

Change-Id: I6c32b66f39b7ad2741fb36a347bce2b17fc1859f
Prevent divide-by-zero in coprocessing.py

Change-Id: Id443a4235c0191b6387d49b94b590d73e42fede3
Merge topic 'catalyst-rendering-fix' into next

d433f5bb Prevent divide-by-zero in coprocessing.py
d6ca1e7e Link PVVTKExtensionsRendering with MPI
78f572e9 Add PassArrays to Essentials