Mobstate Refactor (#13389)

Refactors mobstate and moves mob health thresholds to their own component

Co-authored-by: DrSmugleaf <drsmugleaf@gmail.com>

Content.Client/DamageState/DamageStateVisualsComponent.cs

@@ -0,0 +1,22 @@
+using Content.Shared.Mobs;
+
+namespace Content.Client.DamageState;
+
+[RegisterComponent]
+public sealed class DamageStateVisualsComponent : Component
+{
+    public int? OriginalDrawDepth;
+
+    [DataField("states")] public Dictionary<MobState, Dictionary<DamageStateVisualLayers, string>> States = new();
+
+    /// <summary>
+    /// Should noRot be turned off when crit / dead.
+    /// </summary>
+    [DataField("rotate")] public bool Rotate;
+}
+
+public enum DamageStateVisualLayers : byte
+{
+    Base,
+    BaseUnshaded,
+}