[WIP] Simulated cutting example #18258
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This was referenced Dec 1, 2022
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This WIP PR uses joint locking along with
QuaternionFloatingJoints to achieve a mock cutting or slicing simulation. Cutting forces and fracture are not computed, rather pre-sliced sections of the object are welded together by creating a 6-dof joint between adjacent segments and locking said joint. A "cut" or "slice" of the object pauses the simulation and instantaneously detaches that slice from the composite body by unlocking the corresponding joint.Here are the bodies welded together acting as a composite rigid body:
cc: @rcory @amcastro-tri @sherm1
This change is