[algorithm] Refactor InsertionAlgorithm to use an Operation for coupling point removal

[th-skam]

The following lines could be replaced by an Operation:

CollisionAlgorithm/src/sofa/collisionAlgorithm/algorithm/InsertionAlgorithm.h

Lines 257 to 270 in ebd68b8

	const EdgeProximity::SPtr edgeProx =
	dynamic_pointer_cast<EdgeProximity>(shaftProx);
	if (edgeProx)
	{
	const type::Vec3 normal = (edgeProx->element()->getP1()->getPosition() -
	edgeProx->element()->getP0()->getPosition())
	.normalized();
	// If the (last) coupling point lies ahead of the tip (positive dot product),
	// the needle is retreating. Thus, that point is removed.
	if (dot(tip2Pt, normal) > 0_sreal)
	{
	m_couplingPts.pop_back();
	}
	}

The InsertionAlgorithm is a customized algorithm class for needle insertion. There could be equivalent customized Operation classes.