The CompressibleFlowCadExample Test hangs with a clang build with 64 bit indices

[klbudzin]

For some reason the new refactor of Geometry aware mesh topologies in Petsc 5552b385b77b214b234683fbe1b434751e6350f0 causes the call: DMPlexGenerate(surfaceDm, generator.empty() ? "tetgen" : generator.c_str(), PETSC_TRUE, &dm) >> utilities::PetscUtilities::checkError;
to hang for our clang build with 64 bit indices. Im pretty sure this is a problem with PetsC, so the CompressibleFlowCadExample Test is currently switched off to not stifle progress on other things.