Adds two generators : Asteroid and Syndicate
Syndicate templates
Finish syndicate templates
Moves border and repressurize to helpers.dm
Repressurize generator
Shuttle generator
Buildmode now resets the corners when switching modes/generators
Moves shuttle turfs to paths under /turf/simulated/floor and /turf/simulated/wall
Players can now safely build on top of shuttle turfs
Fixes#1711
Adds several but not all paths for the different types of floor turfs, most of them in plasteel_floor.dm
The turf pathings are still in need of a deeper organization, but this is at least a start