Add check for smart pointer type in generated code for director connection. This fixes a crash in the generated code caused by the dynamic_cast returning 0 because the specified types are incorrect for smart pointer types.

Add runtime test to the C# test suite's director smartptr test that demonstrates crash in generated code when directors are used with smart pointer types.

Closes #34

Examples/test-suite/csharp/director_smartptr_runme.cs

@@ -0,0 +1,41 @@
+using director_smartptrNamespace;
+
+public class runme
+{
+
+  private class director_smartptr_MyBarFoo : Foo
+  {
+    public override string ping()
+    {
+      return "director_smartptr_MyBarFoo.ping();";
+    }
+
+    public override string pong()
+    {
+      return "director_smartptr_MyBarFoo.pong();" + ping();
+    }
+
+    public override string fooBar(FooBar fooBar)
+    {
+      return fooBar.FooBarDo();
+    }
+
+    public override Foo makeFoo()
+    {
+      return new Foo();
+    }
+
+    public override FooBar makeFooBar()
+    {
+      return new FooBar();
+    }
+  }
+
+  static void Main()
+  {
+    director_smartptr_MyBarFoo myBarFoo =
+      new director_smartptr_MyBarFoo();
+
+    myBarFoo.ping();
+  }
+}