(intended for traffic signage or similar)
Rework related textures. Use steel ingots and green, white, black, yellow dyes
to craft. Can also use "sheet metal" from my fork of Zeg9's steel mod.
MUCH more readable background texture for all signs
use exact-to-pixel dimensions on all signs
move sign models to start of signs_lib where they can be seen
make homedecor's brass/iron signs-on-posts use them
adjust all textures accordingly
package the two together as a modpack so that regular homedecor users don't
see a functional change, but others can take signs_lib and use it as a
standalone mod.
also get rid of some *~ files
