roofs added

[cuberound]

About the pull request

feels strange to add this only as hybrasia behavior, made it into proper structure, it still NEEDS some work. Give me feedback regarding how (and if) it should handle explosions, xeno attack, accid bullets and any other stuff you come up with ( I used catwalk as default sprite as I have no roof sprite, if someone has default roof sprite they could give, go ahead)

Explain why it's good for the game

gives another tool to mappers, it is not exactly ment for covering huge areas with roofs (even tho it works too, might be a bit server heavy tho no idea how it would behave with dozens of mobs constantly moving under roof and being searched for on each mvoement) was made for hybrasia lattices and billboards

Testing Photographs and Procedure

Screenshots & Videos

Put screenshots and videos here with an empty line between the screenshots and the <details> tags.

Changelog

🆑
add: roof structures added, can be also used for lattices and billboards, go transparent when you are near them
/:cl:

[Drulikar]

There should also be a way to designate other kinds of objects that go transparent with this group too; e.g. any /obj/structure/prop/hybrisa/billboardsandsigns mounted on the lattices. As far as I can tell they will have the same loc as a lattice.

[Drulikar]

As far as I can tell everything is working