Atom integrity and armor

[FalloutFalcon]

About The Pull Request

https://github.com/tgstation/tgstation/pull/61183 and https://github.com/tgstation/tgstation/pull/59474 (only the setting)

Instead of obj integrity and other obj_ intergity procs, most behavior is now handled on the atom layer. Integrity is now also handled by a setting meaning we can reliably hook a signal onto integrity changes. (could be useful for damage overlays or similar) renames some limb integ and SM integ stuff so they dont overlap with updated proc names.

Why It's Good For The Game

I want to move the damage_deflection var up to atoms so i can make walls reflect like windows do. I didnt want to snowflake more code so i did the sensible thing and moved the required behavior up to where i can use it.. Im not going to do it in this pr tho because walls have a fair bit of snow flake code related to integrity i want to tackle in its own pr.

Changelog

Nothing player facing