ENH: implementing collision detection of two tetrahedral meshes using spatial hashing

Base/Collision/CMakeLists.txt

Base/Collision/CollisionData/imstkCollisionData.h

...CollisionDetection/DataStructures/imstkSpatialHashTable.h

.../DataStructures/imstkSpatialHashTableSeparateChaining.cpp

...on/DataStructures/imstkSpatialHashTableSeparateChaining.h

Base/Collision/CollisionDetection/imstkTetraToTetraCD.cpp

Base/Collision/CollisionDetection/imstkTetraToTetraCD.h

Base/Collision/Testing/imstkTetraToTetraCDTest.cpp

Base/Geometry/Map/imstkOneToOneMap.cpp

Base/Geometry/Map/imstkTetraTriangleMap.cpp

Base/Geometry/Mesh/imstkMesh.cpp

Base/Geometry/Mesh/imstkMesh.h

CMakeLists.txt

Examples/CMakeLists.txt