function scale$1(out, a, b) {
    out[0] = a[0] * b;
    out[1] = a[1] * b;
    out[2] = a[2] * b;
    out[3] = a[3] * b;
    out[4] = a[4] * b;
    out[5] = a[5] * b;
    out[6] = a[6] * b;
    out[7] = a[7] * b;
    return out;
  }
Scales a dual quat by a scalar number

@param {quat2} out the receiving dual quat
@param {ReadonlyQuat2} a the dual quat to scale
@param {Number} b amount to scale the dual quat by
@returns {quat2} out
@function