Predicted stamina (#12413)

* Predicted stamina

Needed to do some semblence of predicted melee.

* Okay now done.

* Pause support

* Comment

Content.Shared/Damage/Components/ActiveStaminaComponent.cs

@@ -0,0 +1,10 @@
+namespace Content.Shared.Damage.Components;
+
+/// <summary>
+/// Tracks whether an entity has ANY stamina damage for update purposes only.
+/// </summary>
+[RegisterComponent]
+public sealed class ActiveStaminaComponent : Component
+{
+
+}