Initial Commit (w/ Ch1Duck first implementation)

Ch1Duck/Program.cs

@@ -0,0 +1,7 @@
+// See https://aka.ms/new-console-template for more information
+
+using Ch1Duck;
+
+Duck mallard = new MallardDuck();
+mallard.PerformQuack();
+mallard.PerformFly();