ENH: Register cutting pair, fix redundant cast and comment

Source/Scene/imstkObjectInteractionFactory.cpp

@@ -26,6 +26,7 @@ limitations under the License.
 #include "imstkFeDeformableObject.h"
 #include "imstkPbdObject.h"
 #include "imstkPbdObjectCollisionPair.h"
+#include "imstkPbdObjectCuttingPair.h"
 #include "imstkPbdObjectPickingPair.h"
 #include "imstkPBDPickingCH.h"
 #include "imstkPenaltyCH.h"
@@ -53,9 +54,13 @@ makeObjectInteractionPair(std::shared_ptr<CollidingObject> obj1, std::shared_ptr
     {
         results = std::make_shared<PbdObjectCollisionPair>(std::dynamic_pointer_cast<PbdObject>(obj1), std::dynamic_pointer_cast<PbdObject>(obj2), cdType);
     }
+    else if (intType == InteractionType::PbdObjToCollidingObjCutting && isType<PbdObject>(obj1))
+    {
+        results = std::make_shared<PbdObjectCuttingPair>(std::dynamic_pointer_cast<PbdObject>(obj1), obj2);
+    }
     else if (intType == InteractionType::PbdObjToCollidingObjPicking && isType<PbdObject>(obj1))
     {
-        results = std::make_shared<PbdObjectPickingPair>(std::dynamic_pointer_cast<PbdObject>(obj1), std::dynamic_pointer_cast<CollidingObject>(obj2), cdType);
+        results = std::make_shared<PbdObjectPickingPair>(std::dynamic_pointer_cast<PbdObject>(obj1), obj2, cdType);
     }
     //else if (intType == InteractionType::PbdObjToCollidingObjCollision && isType<PbdObject>(obj1))
     //{

Source/Scene/imstkObjectInteractionFactory.h

@@ -33,6 +33,7 @@ enum class InteractionType
 {
     PbdObjToPbdObjCollision,
     PbdObjToCollidingObjPicking,
+    PbdObjToCollidingObjCutting,
 
     PbdObjToCollidingObjCollision,
     SphObjToCollidingObjCollision,

Source/Scene/imstkPbdObjectPickingPair.h

@@ -32,7 +32,7 @@ class PbdSolver;
 ///
 /// \class PbdObjectCollisionPair
 ///
-/// \brief This class defines a collision interaction between two PbdObjects
+/// \brief This class defines a picking interaction between a PbdObject and a CollidingObject with AnalyticalGeometry
 ///
 class PbdObjectPickingPair : public CollisionPair
 {