Add PlantSchemeWindow

PamhagenSysCtrl/Helpers/Pipeline/INode.cs

@@ -0,0 +1,13 @@
+using System.Windows.Controls;
+
+namespace PamhagenSysCtrl.Helpers.Pipeline {
+    public interface INode {
+
+        public double CenterX { get; }
+        public double CenterY { get; }
+        public string Label { get; }
+
+        public void Draw(Canvas canvas);
+
+    }
+}