Display fundamentals

LuminousSales/Display/Sales/Deal.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Display.Sales
+{
+    class Deal
+    {
+    }
+}

LuminousSales/Display/Sales/Stock.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Display.Sales
+{
+    class Stock
+    {
+        public void 
+    }
+}