Adds random maint to Yogsmeta

[PrinceKirze]

Adds random maint to Yogsmeta

Intent of your Pull Request

Adds randomly generated maintenance rooms to Yogsmeta.

Why is this good for the game?

Random maintenance, I believe, is a change that allows for greater variety across rounds. This is simply adding these changes to Yogsmeta to encourage people who like random maintenance to play more than one map, and for greater consistency across the maps we use. If this goes well, I plan to do the same to Delta, and maybe Omega if anyone cares.

Changelog

🆑
rscadd: Added random maintenance to Yogsmeta
tweak: Had to push all of xenobio down by 1 turf to make room for a template
tweak: Moved some xenospawn markers and blobspawn markers around because they can't coexist with the templates reliably
/:cl:

Only my second PR and my first actual big change so if I did something wrong, please point it out.

[UselessTheremin]

hell yeah! a reason to vote meta! im all for it.

[smorgli]

Fixed some errors and added a 10x5 because there wasn't one. There is some questionable room placement but overall this is a good change.