added line feed

Controllers/PrinterController.cs

@@ -47,6 +47,9 @@ public class PrinterController : Controller
 				case "barcode":
 					parsedInstruction = instruction.Deserialize<BarcodeInstruction>();
 					break;
+				case "feed":
+					parsedInstruction = instruction.Deserialize<FeedInstruction>();
+					break;
 				default:
 					return BadRequest();
 			}

Instructions/FeedInstruction.cs

@@ -0,0 +1,12 @@
+public class FeedInstruction : BaseInstruction
+{
+	public int lines {get; set; } = 1;
+	public override List<byte[]> GetInstructions()
+	{
+		var commands = new List<byte[]>();
+
+		commands.Add(e.FeedLines(lines));
+
+		return commands;
+	}
+}