Convert Modals to use Caldera Modals

[DavidCramer]

The current version relies on jQuery UI for modals. I am using a Tait Brown's Aristo theme https://github.com/taitems/Aristo-jQuery-UI-Theme

I only used it for the modals and since I have built my own modal library (which is used in Caldera Forms) https://calderawp.github.io/caldera-modals I would prefer to use this since its easier and relies on html attributes rather than script blocks.

Note that the linked library is not the same one in CF. So I'll post a link to the WordPress version.