Station Anchor (#26098)

* Work on abstracting out chargeup functionality/ui from grav gen

* Work on station anchor

* Finish implementing station anchors

* uhh yeah

* ok.

* fix tests

* whoops

* Get the last extraneous yaml fail

* PJB review

* beast mode... ACTIVATE!

---------

Co-authored-by: Ed <96445749+TheShuEd@users.noreply.github.com>
Co-authored-by: EmoGarbage404 <retron404@gmail.com>

Content.Client/Power/PowerCharge/PowerChargeBoundUserInterface.cs

@@ -0,0 +1,38 @@
+using Content.Shared.Power;
+using Robust.Client.UserInterface;
+
+namespace Content.Client.Power.PowerCharge;
+
+public sealed class PowerChargeBoundUserInterface : BoundUserInterface
+{
+    [ViewVariables]
+    private PowerChargeWindow? _window;
+
+    public PowerChargeBoundUserInterface(EntityUid owner, Enum uiKey) : base(owner, uiKey)
+    {
+    }
+
+    public void SetPowerSwitch(bool on)
+    {
+        SendMessage(new SwitchChargingMachineMessage(on));
+    }
+
+    protected override void Open()
+    {
+        base.Open();
+        if (!EntMan.TryGetComponent(Owner, out PowerChargeComponent? component))
+            return;
+
+        _window = this.CreateWindow<PowerChargeWindow>();
+        _window.UpdateWindow(this, Loc.GetString(component.WindowTitle));
+    }
+
+    protected override void UpdateState(BoundUserInterfaceState state)
+    {
+        base.UpdateState(state);
+        if (state is not PowerChargeState chargeState)
+            return;
+
+        _window?.UpdateState(chargeState);
+    }
+}