Implement serialization for exceptions.

Author: bgrainger

src/MySqlConnector/MySqlConversionException.cs

@@ -1,10 +1,16 @@
 using System;
+#if !NETSTANDARD1_3
+using System.Runtime.Serialization;
+#endif
 
 namespace MySqlConnector
 {
 	/// <summary>
 	/// <see cref="MySqlConversionException"/> is thrown when a MySQL value can't be converted to another type.
 	/// </summary>
+#if !NETSTANDARD1_3
+	[Serializable]
+#endif
 	public class MySqlConversionException : Exception
 	{
 		/// <summary>
@@ -15,5 +21,12 @@ public MySqlConversionException(string message)
 			: base(message)
 		{
 		}
+
+#if !NETSTANDARD1_3
+		private MySqlConversionException(SerializationInfo info, StreamingContext context)
+			: base(info, context)
+		{
+		}
+#endif
 	}
 }

src/MySqlConnector/MySqlProtocolException.cs

@@ -1,11 +1,17 @@
 using System;
+#if !NETSTANDARD1_3
+using System.Runtime.Serialization;
+#endif
 using MySqlConnector.Utilities;
 
 namespace MySqlConnector
 {
 	/// <summary>
 	/// <see cref="MySqlProtocolException"/> is thrown when there is an internal protocol error communicating with MySQL Server.
 	/// </summary>
+#if !NETSTANDARD1_3
+	[Serializable]
+#endif
 	public sealed class MySqlProtocolException : InvalidOperationException
 	{
 		/// <summary>
@@ -17,6 +23,13 @@ public sealed class MySqlProtocolException : InvalidOperationException
 		internal static MySqlProtocolException CreateForPacketOutOfOrder(int expectedSequenceNumber, int packetSequenceNumber) =>
 			new MySqlProtocolException("Packet received out-of-order. Expected {0}; got {1}.".FormatInvariant(expectedSequenceNumber, packetSequenceNumber));
 
+#if !NETSTANDARD1_3
+		private MySqlProtocolException(SerializationInfo info, StreamingContext context)
+			: base(info, context)
+		{
+		}
+#endif
+
 		private MySqlProtocolException(string message)
 			: base(message)
 		{