Initial work on compilation to C#

Upsilon/Evaluator/Script.cs

@@ -24,16 +24,19 @@ namespace Upsilon.Evaluator
             Evaluator = new Evaluator(this, Diagnostics, variables);
         }
 
+        public BoundScript Bind()
+        {
+            return Binder.BindScript(_parsed);
+        }
+
         public object Evaluate()
         {
-            var bound  = Binder.BindScript(_parsed);
-            return Evaluator.Evaluate(bound);
+            return Evaluator.Evaluate(Bind());
         }
 
         public T Evaluate<T>()
         {
-            var bound = Binder.BindScript(_parsed);
-            return (T)Evaluator.Evaluate(bound);
+            return (T)Evaluator.Evaluate(Bind());
         }
     }
 }