Delete StyleCop data
Refactor DegreeOfFreedomExtensions

Cast DegreeOfFreedom enum to an int when carrying out checks and
operations on it.
Refactor LinearConstantStressQuadrilateral

Node list is now only copied once within method.
Implement GetHashCode on CartesianPoint
MaterialMatrixBuilder method signature changed

IList<Strain> parameter was unused by method, so removed from method
signature.
ASCII diagram added to Triangle example
Guard against zero determinant Jacobian matrix
FiniteElement can calculate local positions of nodes

FiniteElement can calculate local positions of nodes relative to the
defined origin and rotation of the element.
LinearConstantStrainTriangleStiffnessMatrixBuilder uses local
coordinates in calculations.
ElementStiffnessMatrixBuilder

Jacobian method guards against invalid natural coordinates.
NodeCoordinatesAsMatrix method uses method in FiniteElement which
calculates local coordinates.
Quad example updated with additional examples/verification