make­shape – De­clare new PGF shapes

The pack­age sim­pli­fies pro­duc­tion of cus­tom shapes with cor­rect an­chor bor­ders, in PGF/TikZ; the only re­quire­ment is a PGF path de­scrib­ing the an­chor bor­der.
The pack­age also pro­vides macros that help with the man­age­ment of shape pa­ram­e­ters, and the def­i­ni­tion of an­chor points.