added update function for three js attractor, added attractor at origin
added update function for three js attractor, added attractor at origin

benji-b-rmz/AlgorithmVisuals,benji-b-rmz/WebGLExperiments,benji-b-rmz/AlgorithmVisuals,benji-b-rmz/WebGLExperiments,benji-b-rmz/WebGLExperiments,benji-b-rmz/AlgorithmVisuals