fixed normals for /commandmodels

fixed positioning for /commandmodels, fixed argument order for /particlemodels, added scaleTo argument for /particlemodels

fixed a crashing bug relates to using /commandmodels under /execute run

permission fix for /commandmodels

added /commandmodels, works about the same as /particlemodels, but instead of taking a particle argument, it takes a command at the end, and executes it at every single point of a model