## About The Pull Request
We're starting to get to have enough components that people don't
realise that what they want already exists but doesn't have the name
they expect 🙃
I recently added `track_hierarchical_movement` which is similar enough
to `connect_containers` that it shouldn't independently exist, even if I
like sending a new signal more than the ugly setup pattern for
`connect_loc`.
`trait_loc` is actually older than `give_turf_traits` but
`give_turf_traits` covers more edge cases than `turf_loc` so seems like
the better one to maintain.
HOWEVER `give_turf_traits` held a list of references to atoms in it,
which isn't great in an element. I couldn't think of a way to completely
eliminate the list, but it isn't a list of references any more so it
shouldn't cause any hard deletions.
## Why It's Good For The Game
Having two components which do the same thing but marginally differently
is confusing and going to cause us trouble down the line.
## Changelog
Not player facing
Loosely adapted from /vg/. This is an entity component system for adding behaviours to datums when inheritance doesn't quite cut it. By using signals and events instead of direct inheritance, you can inject behaviours without hacky overloads. It requires a different method of thinking, but is not hard to use correctly. If a behaviour can have application across more than one thing. Make it generic, make it a component. Atom/mob/obj event? Give it a signal, and forward it's arguments with a SendSignal() call. Now every component that want's to can also know about this happening.
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