fix(core): Fixes accounts and moves it to codegen (#644)

- [X] Fixes TimeSpan not working with codegen
- [X] Fixes bad check for generic classes with a serialize method and deserialize ctor
- [X] Moves Accounts to codegen so it is versioned
- [X] Fixes deserialization of old Accounts with no version variable.
- [X] Fixes deserialize seek not doing anything. 🙈 
- [X] Adds Email to serialization

Projects/UOContent/Accounting/AccountComment.cs

@@ -64,23 +64,6 @@ namespace Server.Accounting
         /// </summary>
         public DateTime LastModified { get; private set; }
 
-        /// <summary>
-        ///     Serializes this AccountComment instance to an XmlTextWriter.
-        /// </summary>
-        /// <param name="xml">The XmlTextWriter instance from which to serialize.</param>
-        public void Save(XmlTextWriter xml)
-        {
-            xml.WriteStartElement("comment");
-
-            xml.WriteAttributeString("addedBy", AddedBy);
-
-            xml.WriteAttributeString("lastModified", XmlConvert.ToString(LastModified, XmlDateTimeSerializationMode.Utc));
-
-            xml.WriteString(m_Content);
-
-            xml.WriteEndElement();
-        }
-
         /// <summary>
         ///     Serializes this AccountComment instance.
         /// </summary>