Peg for Anker hub

A peg made for anker hubs. Holds it well.

Using the following options:
peg_offset = 25
backing_board = 6
peg_length = 33
hole_size = 7
hook_width_percentage = 100
add_shelf_support = N
drop_bottom_arm = 12
tolerance = 5
end_arm_percentage = 50
peg_item = U