Add project files.

Framework/Serial/SerialStreamFactory.cs

@@ -0,0 +1,18 @@
+using System.IO.Ports;
+
+namespace TheXamlGuy.Framework.Serial;
+
+public class SerialStreamer : ISerialStreamer
+{
+    private readonly SerialPort serialPort;
+
+    public SerialStreamer(SerialPort serialPort)
+    {
+        this.serialPort = serialPort;
+    }
+
+    public Stream Create()
+    {
+        return serialPort.BaseStream;
+    }
+}