Misc cleanup and Tinker's nether seared

Added Factorization matrix programmer and the icon for Steve's Carts.
Fixed a bunch of minor bugs and removed a number of defaults. The TE
configs still had the shading outline from the white machines, so I
removed them. TE lamp item fixed, a few default pixels on the TE machine
frame removed.

Tinker's nether seared brick added as well.