through 4 it can be shown that the engaging means 14 according to the present invention 10 preferably comprises a first depending loop 22 projecting from the gripping member 18 of the mounting means 12 preferably the first depending loop 22 is oriented so as to extend substantially orthogonally relative to the mounting pin 20 as shown in the drawings a second depending loop 24 projects from the gripping member 18 of the mounting means 12 and into a substantially parallel orientation relative to the first depending loop 22 preferably the first depending loop 22 is of a first longitudinal length with the second depending loop 24 being of a second longitudinal length wherein the first longitudinal length is substantially greater than the second longitudinal length as shown in the drawings further the first depending loop 22 is preferably of a first transverse width with the second depending loop 24 being of a second transverse width wherein the first transverse width is substantially greater than the second transverse width as shown in the drawings by this structure the second depending loop 24 is permitted to pass through an interior of the first depending loop 22 during resilient deformation of the engaging means 14 as desired.