add some prims for Structure Utilities
add some prims for Structure Utilities

krono/pycket,pycket/pycket,cderici/pycket,pycket/pycket,krono/pycket,magnusmorton/pycket,magnusmorton/pycket,samth/pycket,samth/pycket,vishesh/pycket,samth/pycket,krono/pycket,vishesh/pycket,cderici/pycket,pycket/pycket,vishesh/pycket,cderici/pycket,magnusmorton/pycket