Add args to Main/Execute definition

This allows code within the Main/Execute function to take arguments.

Author: dcsync

src/SharpGen.cs

@@ -437,7 +437,7 @@ private static string RandomString()
 
 public static class {0}
 {{
-    static {1} {2}()
+    static {1} {2}(string[] args)
     {{
         {3}
     }}