Suppress CA1069 warning about duplicated enum values.

These are deliberately part of the public API for compatibility.

Author: bgrainger

src/MySqlConnector/MySqlConnectionProtocol.cs

@@ -1,5 +1,6 @@
 namespace MySqlConnector
 {
+#pragma warning disable CA1069 // Enum values should not be duplicated
 	/// <summary>
 	/// Specifies the type of connection to make to the server.
 	/// </summary>
@@ -30,4 +31,5 @@ public enum MySqlConnectionProtocol
 		SharedMemory = 4,
 		Memory = 4
 	}
+#pragma warning restore CA1069 // Enum values should not be duplicated
 }

src/MySqlConnector/MySqlDbType.cs

@@ -18,8 +18,10 @@ public enum MySqlDbType
 		Date,
 		Time,
 		DateTime,
+#pragma warning disable CA1069 // Enum values should not be duplicated
 		[Obsolete("The Datetime enum value is obsolete.  Please use DateTime.")]
 		Datetime = 12,
+#pragma warning restore CA1069
 		Year,
 		Newdate,
 		VarString,