fromPointAxisNormal = (point, axis, normal) => {
  const connector = create()
  connector.point = vec3.clone(point)
  connector.axis = vec3.normalize(vec3.create(), axis)
  connector.normal = vec3.normalize(vec3.create(), normal)
  return connector
}
Create a connector from the given point, axis and normal.
@param {vec3} point - the point of the connector, relative to the parent geometry
@param {vec3} axis - the axis (directional vector) of the connector
@param {vec3} normal - the normal (directional vector) of the connector, perpendicular to the axis
@returns {connector} a new connector
@alias module:modeling/connectors.fromPointsAxisNormal