Fixes resin walls icon on map maker + abandoned mining station
Merge branch 'master' of https://github.com/tgstation/-tg-station into mapmergersoannoying

Conflicts:
	_maps/map_files/tgstation.2.1.3.dmm
Merge pull request #5044 from Jordie0608/mapmergersoannoying

Fixes #4788 Resin walls on the abandoned mining station