COMP: Update aeva-session and SMTK to fix build issues

Update SMTK to fix build issues for json(HelperFunction|Resource).cxx on AppleClang 11.0 and missing vtk module dependencies. Update aeva-session to fix building without ParaView support. Also update include paths for operator headers from aeva-session due to updated installation paths.

List of aeva-session changes:

$ git shortlog 79f295a..54ed002 --no-merges
David Thompson (2):
      Replace the old toolbar buttons with shiny new ones.
      Fix building aeva/session without ParaView support.

List of SMTK changes:

$ git shortlog 669a575..01cab6b --no-merges
Aron Helser (2):
      Add null-check to fix a crash in qtOperationTypeModel
      Fix typo in operator xml.

Ben Boeckel (2):
      python: drop support for Python2
      python: add a release note about Pybind11-related changes

David Thompson (2):
      Fix a superbuild (modelbuilder package) error.
      Fix error building graph resources w/ modern clang...

Shreeraj Jadhav (2):
      Add missing dependencies for vtk modules
      COMP: Fix build of json(HelperFunction|Resource).cxx on AppleClang 11.0