Add project files.

Framework/Serial/SerialReaderHandler.cs

@@ -0,0 +1,9 @@
+using System.Buffers;
+using TheXamlGuy.Framework.Core;
+
+namespace TheXamlGuy.Framework.Serial;
+
+public abstract class SerialReaderHandler<TRead> : IMediatorAsyncHandler<TRead, ReadOnlySequence<byte>> where TRead : class
+{
+    public abstract Task<TRead> Handle(ReadOnlySequence<byte> request, CancellationToken cancellationToken = default);
+}