TriangleModelInRegularGrid
--------------------------

Context: Sofa.Component.Collision.Geometry

collision model using a triangular mesh in a regular grid, as described in BaseMeshTopology

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
 - active : flag indicating if this collision model is active and should be included in default collision detections
 - moving : flag indicating if this object is changing position between iterations
 - simulated : flag indicating if this object is controlled by a simulation
 - selfCollision : flag indication if the object can self collide
 - proximity : Distance to the actual (visual) surface
 - contactStiffness : Contact stiffness
 - contactFriction : Contact friction coefficient (dry or viscous or unused depending on the contact method)
 - contactRestitution : Contact coefficient of restitution
 - contactResponse : if set, indicate to the ContactManager that this model should use the given class of contacts.
Note that this is only indicative, and in particular if both collision models specify a different class it is up to the manager to choose.
 - color : color used to display the collision model if requested
 - group : IDs of the groups containing this model. No collision can occur between collision models included in a common group (e.g. allowing the same object to have multiple collision models)
 - numberOfContacts : Number of collision models this collision model is currently attached to
 - bothSide : activate collision on both side of the triangle model
 - computeNormals : set to false to disable computation of triangles normal
 - useCurvature : use the curvature of the mesh to avoid some self-intersection test

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
 - previous : Previous (coarser / upper / parent level) CollisionModel in the hierarchy.
 - next : Next (finer / lower / child level) CollisionModel in the hierarchy.
 - collisionElementActiver : CollisionElementActiver component that activates or deactivates collision element(s) during execution
 - topology : link to the topology container