Changed the spacepod system to improve it.

Added a spacepod fabricator.
Added spacepod frame parts used in spacepod construction.
Woopsy
Merge remote-tracking branch 'upstream/Bleeding-Edge' into Spacepods
Changelog
Updated the DME, added access to the podfab and podfab to map, changed usr and span.
Merge remote-tracking branch 'upstream/Bleeding-Edge' into Spacepods.
Update merge conflicts.
Fix merge conflicts.
Fix merge conflicts.
OK
Slagging fixes.
 * Slag now properly displays that it has content.
 * Worthlessness is red.
 * Smelting furnaces give minerals to slag.
 * Drink glasses and bottles melt properly.
Merge pull request #1841 from N3X15/melting

Slagging fixes.
 * Fixed broken cooled puddle sprite
 * Permit cooling with extinguishers
 * Checks for cooled air.
 * Orange glow.
Merge pull request #1843 from N3X15/melting

Slag - More fixins.
Fix master belt not having a sprite
Wo
I am dumb 2: electric boogaloo
Fix head reattachment for realsies
Changelog
Real index fix this time I swear.
Fix merge conflicts.