Merge branch 'CDHRefactor' into 'master'

CMake/External/External_SCCD.cmake

CMake/FindSCCD.cmake

CMake/iMSTKConfig.cmake.in

CMakeLists.txt

...rgical Instruments/Syringes/Disposable_Syringe.stl.sha512

Docs/source/Collision_Detection.rst

Docs/source/Collision_Handling.rst

Docs/source/Event_System.rst

Docs/source/media/Collision_Detection/capsuleToPoint.png

Docs/source/media/Collision_Detection/capsuleToTriangle.png

Docs/source/media/Collision_Detection/constraintEx1.png

Docs/source/media/Collision_Detection/contactManifolds.png

Docs/source/media/Collision_Detection/cylinderToPoint.png

Docs/source/media/Collision_Detection/edgeContact.png

Docs/source/media/Collision_Detection/edgeContactOverlap.png

Docs/source/media/Collision_Detection/edgeContactResolve.png

Docs/source/media/Collision_Detection/edgeToEdge.png

Docs/source/media/Collision_Detection/obbToPoint.png

Docs/source/media/Collision_Detection/pointCCD.png

Docs/source/media/Collision_Detection/pointInPolygon.png