SubsetMapping
-------------

Context: Sofa.Component.Mapping.Linear

TODO-SubsetMappingClass

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?
 - applyRestPosition : set to true to apply this mapping to restPosition at init
 - indices : list of input indices
 - first : first index (use if indices are sequential)
 - last : last index (use if indices are sequential)
 - radius : search radius to find corresponding points in case no indices are given
 - handleTopologyChange : Enable support of topological changes for indices (disable if it is linked from SubsetTopologicalMapping::pointD2S)
 - ignoreNotFound : True to ignore points that are not found in the input model, they will be treated as fixed points
 - resizeToModel : True to resize the output MechanicalState to match the size of indices

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
 - input : Input object to map
 - output : Output object to map
 - topology : link to the topology container