VoidMapping
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Context: Sofa.Component.Mapping.Linear

Special mapping that 'map' points for void ( no input DOF ). This is useful to be able to create animated objects mixed with real DOFs.

Data:
 - name : object name
 - printLog : if true, emits extra messages at runtime.
 - tags : list of the subsets the objet belongs to
 - bbox : this object bounding box
 - componentState : The state of the component among (Dirty, Valid, Undefined, Loading, Invalid).
 - listening : if true, handle the events, otherwise ignore the events
 - mapForces : Are forces mapped ?
 - mapConstraints : Are constraints mapped ?
 - mapMasses : Are masses mapped ?
 - mapMatrices : Are matrix explicit mapped?

Links:
 - context : Graph Node containing this object (or BaseContext::getDefault() if no graph is used
 - slaves : Sub-objects used internally by this object
 - master : nullptr for regular objects, or master object for which this object is one sub-objects