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

Moved some procs relating to designs from rdmachines to designs.dm
Added flatpack instructions.
Added plastic sheets to map.
Added plastic, fixed merge conflicts.
Fix merge conflicts.
Changelog.
Added flatpacks to changelog.
Batch of fixes to the map

Description pending
Including Podbay lightswitch change
Including Tcomms Waste fix
Changelog
Hotfix
Fixed Durand plates not being buildable.
Merge pull request #1932 from ComicIronic/MechaFix

Fixed Durand plates not being buildable.
robots.dmi fix
Merge pull request #1934 from SkowronX/improvedSecuritron

Securitron eye fix
Efficiency: Fixed broken windoors and stuff
Merge pull request #1935 from Duny-/Defficiency_tweaking

Efficiency: Fixed broken windoors and stuff
stop giving me cancer