fix(Plugins): Virtualize new methods

Grr, I thought I caught this at some point.

AdGoBye.Plugins/BasePlugin.cs

@@ -31,15 +31,15 @@ public virtual EVerifyResult Verify(Content context, ref readonly ContentAssetMa
         return EVerifyResult.Success;
     }
 
-    public void Initialize(Content context)
+    public virtual void Initialize(Content context)
     {
     }
 
-    public void PostPatch(Content context)
+    public virtual void PostPatch(Content context)
     {
     }
 
-    public bool WantsIndexerTracking()
+    public virtual bool WantsIndexerTracking()
     {
         return true;
     }