[Addon] Panels for Extra Objects

Hy there!

I made small addon for extra objects panels in the create tab.
https://drive.google.com/file/d/0B5QQIWH-54S1clBoWHJFbFpoSUE/view?usp=sharing
> the addon extra objects must be activated
https://lh3.googleusercontent.com/-uC9PPijFczk/VbkiNQnYLLI/AAAAAAAAIQ4/cK_zivdVqeI/w297-h485-no/Extra_Objects_Panels.png

Thanks @mkbreuer! Congrats.