Add support for reading/writing System.Guid

TcpDotNet/Protocol/ProtocolReader.cs

@@ -35,6 +35,20 @@ public sealed class ProtocolReader : BinaryReader
     {
     }
 
+    /// <summary>
+    ///     Reads a <see cref="Guid" /> value from the current stream and advances the current position of the stream by sixteen
+    ///     bytes.
+    /// </summary>
+    /// <returns>A <see cref="Guid" /> value.</returns>
+    /// <exception cref="EndOfStreamException">The end of the stream is reached.</exception>
+    public Guid ReadGuid()
+    {
+        Span<byte> buffer = stackalloc byte[16];
+        int read = Read(buffer);
+        if (read != 16) throw new EndOfStreamException();
+        return new Guid(buffer);
+    }
+
     /// <inheritdoc />
     public override short ReadInt16()
     {

TcpDotNet/Protocol/ProtocolWriter.cs

@@ -72,6 +72,17 @@ public sealed class ProtocolWriter : BinaryWriter
         base.Write((ulong) IPAddress.HostToNetworkOrder((long) value));
     }
 
+    /// <summary>
+    ///     Writes a <see cref="Guid" /> value to the current stream and advances the stream position by sixteen bytes.
+    /// </summary>
+    /// <param name="guid">The <see cref="Guid" /> value to write.</param>
+    public void Write(Guid guid)
+    {
+        Span<byte> buffer = stackalloc byte[16];
+        guid.TryWriteBytes(buffer);
+        Write(buffer);
+    }
+
     /// <summary>
     ///     Writes a <see cref="Quaternion" /> value to the current stream and advances the stream position by sixteen bytes.
     /// </summary>