function GJK_EPASupportPoint(vertex, worldVertexA, worldVertexB) {
    this.vertex = vertex;
    this.worldVertexA = worldVertexA;
    this.worldVertexB = worldVertexB;
}
Support point to be added to the DynamicGeometry. The point in Minkowski space as well as the
original pair.

@class GJK_EPASupportPoint
@param {Vec3} vertex The point in Minkowski space.
@param {Vec3} worldVertexA The one vertex.
@param {Vec3} worldVertexB The other vertex.