Merge branch 'refactory-2020' into 'master'

Framework/Geometry/FourVector.h

Framework/Geometry/Line.h

Framework/Geometry/Plane.h

Framework/Geometry/Point.h

Framework/Geometry/QuantityVector.h

Framework/Geometry/RootCoordinateSystem.h

Framework/Geometry/Trajectory.h

Framework/Geometry/Vector.h

Framework/Geometry/testGeometry.cc

Framework/Logging/CMakeLists.txt

Framework/Particles/CMakeLists.txt

Framework/Particles/ParticleProperties.cc

Framework/Particles/ParticleProperties.h

Framework/Particles/particles.dox

Framework/Particles/testParticles.cc

Framework/ProcessSequence/CMakeLists.txt

Framework/ProcessSequence/ProcessSequence.h

Framework/ProcessSequence/ProcessSignature.h

Framework/ProcessSequence/SwitchProcessSequence.h

Framework/ProcessSequence/testSwitchProcessSequence.cc