EulerImplicitSolver
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Context: Sofa.Component.ODESolver.Backward

Time integrator using implicit backward Euler scheme

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
 - rayleighStiffness : Rayleigh damping coefficient related to stiffness, > 0
 - rayleighMass : Rayleigh damping coefficient related to mass, > 0
 - vdamping : Velocity decay coefficient (no decay if null)
 - firstOrder : Use backward Euler scheme for first order ode system.
 - trapezoidalScheme : Optional: use the trapezoidal scheme instead of the implicit Euler scheme and get second order accuracy in time
 - solveConstraint : Apply ConstraintSolver (requires a ConstraintSolver in the same node as this solver, disabled by by default for now)
 - threadSafeVisitor : If true, do not use realloc and free visitors in fwdInteractionForceField.

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