fix(codegen): Adds codegen for embedded objects and timer fields (#686)

* Adds code genning for embedded objects. See `AquariumState` as an example.
* Adds code genning for fields that are `Timer`. See `Aquarium` as an example.
* Codegens aquariums
* Fixes missing option for most primitive field types.

Projects/UOContent/Items/Addons/BaseAddonContainer.cs

@@ -14,7 +14,7 @@ namespace Server.Items
         {
             AddonComponent.ApplyLightTo(this);
 
-            Components = new List<AddonContainerComponent>();
+            _components = new List<AddonContainerComponent>();
         }
 
         public override bool DisplayWeight => false;