[NUI] Initialize C# items if required

[NUI] Initialize C# items if required

We have create ProcessorController constructor without initalize as default.

If NUI core want to change this policy, we can initialize at constructor time.
But this case code has some error. It didn't create C# side objects and only create
native side.

Let we make constructor with initialize works well now.

Signed-off-by: Eunki, Hong <eunkiki.hong@samsung.com>