By Addison Wylie As far as sub-standard horror goes, Texas Chainsaw 3D is as by-the-numbers as scary movies go; if you skim the surface. However, I think John Luessenhop’s film is smarter than it looks and deserves more credit than it’s throwaway January release date gives it. Texas Chainsaw 3D takes us to the beginning of the long-running story; except this time, it wishes to wipe the slate clean. This sequel to the original Texas…