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.Shared/Tools/Systems/SharedToolSystem.cs

@@ -33,6 +33,9 @@ public abstract partial class SharedToolSystem : EntitySystem
     [Dependency] private   readonly TurfSystem _turfs = default!;
     [Dependency] protected readonly SharedSolutionContainerSystem SolutionContainer = default!;
 
+    public const string CutQuality = "Cutting";
+    public const string PulseQuality = "Pulsing";
+
     public override void Initialize()
     {
         InitializeMultipleTool();