Initial commit

Initial commit til Git.
V2 er deployed

PointOfSale/Utilities/ESCPOS_NET/Printers/SerialPrinter.cs

@@ -0,0 +1,32 @@
+using System.IO;
+using System.IO.Ports;
+using System.Threading.Tasks;
+
+namespace ESCPOS_NET
+{
+    public class SerialPrinter : BasePrinter
+    {
+        private readonly SerialPort _serialPort;
+
+        public SerialPrinter(string portName, int baudRate)
+            : base()
+        {
+            _serialPort = new SerialPort(portName, baudRate);
+            _serialPort.Open();
+            Writer = new BinaryWriter(_serialPort.BaseStream);
+            Reader = new BinaryReader(_serialPort.BaseStream);
+        }
+
+        protected override void OverridableDispose()
+        {
+            _serialPort?.Close();
+            _serialPort?.Dispose();
+            Task.Delay(250).Wait(); // Based on MSDN Documentation, should sleep after calling Close or some functionality will not be determinant.
+        }
+
+        public void Disable()
+        {
+            OverridableDispose();
+        }
+    }
+}