Re-pipes the station using the new overlapping supply/scrubber pipes

Pipes pulled through maintenance where possible, intentionally making them more busy.
No pipes under walls where at all avoidable.
Xeno/Virology "scrubber" pipes now have their own color.
Merge remote-tracking branch 'upstream/dev' into HatePipes
Departments now have their air/scrubber pipes routed through relevant substations.
Merge pull request #6519 from PsiOmegaDelta/HatePipes

BYOND Akbar