Rack of Holes

Edit 10/24/2018:
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Added two new "hole shapes" to support wall mounting. Both of them force cylindrical holes, but put them in at 45 degrees so that if you mount this rack to the wall, your bottles (or whatever) are held at a safe angle. "horiz" vs "vert" changes which direction you want your groups oriented.

Overview:
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Simple generator for a rack full of holes. I needed something to organize two weeks of bottles, two per day. Realized it might be