fix(core): Fixes several serialization issues (#355)

- [X] Fixes an issue where a buffer smaller than 8 bytes would not double with enough space in some cases.
- [X] Fixes an issue with dupe copying the savebuffer reference (ugh).
- [X] Streamlines the IGenericWriter API to use better generics.
- [X] Streamlines the IGenericReader API to use better generics.
- [X] Forces `tidying` of a List/HashSet to be done externally since Writers/Readers should not have side effects.
- [X] Fixes an issue where Tidying a list didn't TrimExcess, causing memory leaks.
- [X] Reverted the meaning of `World.Running` to specifically refer to any world state post world loading.
  - NOTE: Do not use this if you want to block on world saves. Instead use checks against `WorldState.Saving` states.
- [X] Fixes an issue with serializing negative DateTime deltas.
- [X] Fixes a potential issue with serializing non-UTC DateTime.

Bumps release version

Projects/UOContent/Items/Addons/BaseAddonContainer.cs

@@ -192,7 +192,7 @@ namespace Server.Items
 
             writer.Write(0); // version
 
-            writer.WriteItemList(Components);
+            writer.Write(Components);
             writer.Write((int)m_Resource);
         }
 
@@ -202,7 +202,7 @@ namespace Server.Items
 
             var version = reader.ReadInt();
 
-            Components = reader.ReadStrongItemList<AddonContainerComponent>();
+            Components = reader.ReadEntityList<AddonContainerComponent>();
             m_Resource = (CraftResource)reader.ReadInt();
 
             AddonComponent.ApplyLightTo(this);