Merge branch 'catch2_updates' into 'master'

Environment/CMakeLists.txt

Environment/testEnvironment.cc

Framework/CMakeLists.txt

Framework/Cascade/CMakeLists.txt

Framework/Cascade/testCascade.cc

Framework/Geometry/CMakeLists.txt

Framework/Geometry/testFourVector.cc

Framework/Geometry/testGeometry.cc

Framework/Logging/CMakeLists.txt

Framework/Logging/testLogging.cc

Framework/Particles/CMakeLists.txt

Framework/Particles/testParticles.cc

Framework/ProcessSequence/CMakeLists.txt

Framework/ProcessSequence/testProcessSequence.cc

Framework/Random/CMakeLists.txt

Framework/Random/testRandom.cc

Framework/StackInterface/CMakeLists.txt

Framework/StackInterface/testCombinedStack.cc

Framework/StackInterface/testSecondaryView.cc

Framework/StackInterface/testStackInterface.cc