UniformLagrangianConstraint
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Context: Sofa.Component.Constraint.Lagrangian.Model

A constraint equation applied on all 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
 - group : ID of the group containing this constraint. This ID is used to specify which constraints are solved by which solver, by specifying in each solver which groups of constraints it should handle.
 - constraintIndex : Constraint index (first index in the right hand term resolution vector)
 - endTime : The constraint stops acting after the given value.
Use a negative value for infinite constraints
 - iterative : Iterate over the bilateral constraints, otherwise a block factorisation is computed.
 - constrainToRestPos : if false, constrains the pos to be zero / if true constraint the current position to stay at rest position

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
 - mechanicalStates : List of mechanical states to which this component is associated
 - mstate : MechanicalState used by this component