Unify Classic and RP Sec accesses

[Shiiba]

"This PR is unlikely to get fully merged as-is, but since this topic keeps coming up and being argued about we should at least try it out and see what needs to be changed to make it work. Tying security access to population thresholds or alert levels are definitely possible solutions to the issues of low-pop and crises requiring the extra access if that appears to be necessary."

This was Leah's comment on the actual PR itself and I would just like to give some input on Security/Pop Access from other servers.

On low pop rounds on some TG based servers (I'm not sure if this is all), other jobs have access to locations based on the population, such as the chef, bartender and botanists all kind of have equal access (maint, bar, kitchen, botany, ranch ig in our case) to cover those jobs if they're out, I think that could be something we could consider to kind of deal with the "security do-everything" role. 

Also I think crisis levels changing access would be incredibly fun, I know TG has their green -> blue -> orange (engineering) -> amber -> violet (medical) -> red -> delta, I think having something like that would get the button in the bridge more use, because right now all I ever see it as is the button the clown smashes and not much else.