Add new confirmation mode

Hi @alikaragoz ,

First, Thank you for made this cell. It helps me a lot. :+1:
I am using it in my project but i got requirement that the cell need to be able to take confirmation within the cell itself, not alertview. I also tried with #65 by @benjaminjackson but it not working like what i need.

Maybe you can take a look on this. Hope it is useful.