Power stuff (#31314)

* Power stuff

- Add shared IsPowered
- Add shared ResolveApc
- Move PowerChangedEvent to shared for now
- Add SlimPoweredLight that actually functions how you'd expect a PoweredLight to function it id didn't have a bunch of bloat on it.

* big update

* boing

Content.Server/VendingMachines/VendingMachineSystem.cs

@@ -16,6 +16,7 @@ using Content.Shared.Emag.Components;
 using Content.Shared.Emag.Systems;
 using Content.Shared.Emp;
 using Content.Shared.Popups;
+using Content.Shared.Power;
 using Content.Shared.Throwing;
 using Content.Shared.UserInterface;
 using Content.Shared.VendingMachines;