Content PR for YAML hot reloading (#3319)

* Content PR for YAML hot reloading

* Add CanAdminReloadPrototypes (host permission)

* IndexedPrototype fixes

Content.Shared/GameObjects/Components/SharedCrayonComponent.cs

@@ -73,6 +73,8 @@ namespace Content.Shared.GameObjects.Components
     [Serializable, NetSerializable, Prototype("crayonDecal")]
     public class CrayonDecalPrototype : IPrototype
     {
+        public string ID { get; private set; }
+
         private string _spritePath;
         public string SpritePath => _spritePath;
 
@@ -83,6 +85,7 @@ namespace Content.Shared.GameObjects.Components
         {
             var serializer = YamlObjectSerializer.NewReader(mapping);
 
+            serializer.DataField(this, x => x.ID, "id", string.Empty);
             serializer.DataField(ref _spritePath, "spritePath", "");
             serializer.DataField(ref _decals, "decals", new List<string>());
         }