Refactors throw events, makes cream pies ECS (#4500)

Content.Shared/Nutrition/Components/CreamPiedComponent.cs

@@ -0,0 +1,25 @@
+using System;
+using Content.Shared.Nutrition.EntitySystems;
+using Robust.Shared.Analyzers;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization;
+using Robust.Shared.ViewVariables;
+
+namespace Content.Shared.Nutrition.Components
+{
+    [Friend(typeof(SharedCreamPieSystem))]
+    [RegisterComponent]
+    public class CreamPiedComponent : Component
+    {
+        public override string Name => "CreamPied";
+
+        [ViewVariables]
+        public bool CreamPied { get; set; } = false;
+    }
+
+    [Serializable, NetSerializable]
+    public enum CreamPiedVisuals
+    {
+        Creamed,
+    }
+}