fix: Updates serialization to use v2.0 (#998)

- [X] Deletes serialization annotations
- [X] Updates to ModernUO.Serialization.Annotations nuget
- [X] Updates serializer to v2.0
- [X] Changes all `Serializable()` to `SerializationGenerator()`
- [X] Updates to schema generator v2.0

Projects/UOContent/Items/Addons/BaseAddonDeed.cs

@@ -1,10 +1,11 @@
+using ModernUO.Serialization;
 using Server.Multis;
 using Server.Spells;
 using Server.Targeting;
 
 namespace Server.Items
 {
-    [Serializable(0, false)]
+    [SerializationGenerator(0, false)]
     [Flippable(0x14F0, 0x14EF)]
     public abstract partial class BaseAddonDeed : Item
     {