Adminbus part1
WIP: Changing the balance designs of mechanic.
Adminbus part2
Adjusted material generation values. Plastic is now fixed at ~10% of total cost.

Moved some procs relating to designs from rdmachines to designs.dm
Work
Borer fixes
```yaml
changes:
- rscadd: "Borers receive a brief instructional greeting and receive objectives."
- bugfix: "Borers and host brains can communicate properly now."
- bugfix: "Borer chat is propagated to ghosts and fellow borers properly."
- bugfix: "Borer chat is stripped of the beginning ;."
- bugfix: "Standardized borer vent-crawling, now uses same system as other vent-crawling mobs."
```
Merge branch 'Bleeding-Edge' of github.com:d3athrow/vgstation13 into fix-borers

Conflicts:
	html/changelogs/N3X15-fix-borers.yml
Redo changelog.
Double-returns
Class rather than style.
Merge pull request #1903 from N3X15/fix-borers

Borer fixes
Added flatpack instructions.
Added plastic sheets to map.
Added plastic, fixed merge conflicts.
Fix merge conflicts.
Changelog.
Ja der xenoarch on Metastation
Metastation should be good to play now.

Fixed up centcom, shuttle areas, vox, mommi, pirate.
Added jukeboxes and ATMs
Added periodic table sign

Because if there's one thing that is critical, it's having more fancy
signs hanged on the walls

Not added into the map yet because I'm already mapping something else
and don't want to cause a conflict
Made in Space USA!