Updates Message Packets (#321)

### API Breaking Change
Combined `AsciiMessage` and `UnicodeMessage` into a single function that takes two arguments, `bool ascii` and `string lang`. Lang can be null (or anything) if ascii is true. 

- [X] Changes message packets
- [X] Cleans up some code
- [X] Uses benchmarks to determine if the spanwriter + copyfrom

Projects/UOContent/Engines/ConPVP/Games/CTF.cs

@@ -291,17 +291,16 @@ namespace Server.Engines.ConPVP
                 {
                     if (Location == m_TeamInfo.Origin && Map == m_TeamInfo.Game.Facet)
                     {
-                        from.Send(
-                            new UnicodeMessage(
-                                Serial,
-                                ItemID,
-                                MessageType.Regular,
-                                0x3B2,
-                                3,
-                                "ENU",
-                                Name,
-                                "Touch me not for I am chaste."
-                            )
+                        from.NetState.SendMessage(
+                            Serial,
+                            ItemID,
+                            MessageType.Regular,
+                            0x3B2,
+                            3,
+                            false,
+                            "ENU",
+                            Name,
+                            "Touch me not for I am chaste."
                         );
                     }
                     else