Made campus levels consistent

[PatrikLundell]

Summary

None

Purpose of change

• Prepare for removal of roof adding magic.
• Fixing errors seen while doing so.

Describe the solution

Find missing roofs and misaligned walls and move them.

Describe alternatives you've considered

Just issue a bug report for the walls.

Testing

• Hack add_roofs to disable it (to allow me to see where roofs are missing, rather than have the roof adding magic disguise the omissions).
• Debug spawned a campus.
• Debug mutated to get the two clairvoyance mutations (Very useful!).
• Teleported to the campus.
• Teleported around to look at the consistency between the levels, covering all of the buildings.

Additional context

The campus special spawns essentially empty, i.e. no furniture, items, or monsters, but with a couple of guards. This made it easy to move around. However, I don't know where those things are supposed to come from, so my adjustments may clash with their placements.
Walls were one tile off, so it's not huge areas being shifted, but still. A tree was replaced by a moved wall, for instance.

Wall adjustments were done to the ground floor, as there are more upper floors, so the majority layout won.

Crap! I made this PR from the saltworks branch rather than master. I'll mark it as draft until that PR has been merged (and hope this won't cause a "conflict").

[harakka]

I don't know where those things are supposed to come from

Nowhere, AFAIK it's a long unfinished location that doesn't appear in the game yet.

[PatrikLundell]

Ah, thanks. I guess we can just fix it up then (or remove it, but I guess it could eventually be used).