WIP For adding field type to gravity forms

WIP For adding field type to gravity forms

Setting up a simple field add on.
Should be able to use this for adding Leads field to any gravity form.
When the field exists we know to store the form data.
Also this will inject the checkboxes for all of the assigned groups.
They will be able to pick which group they want for the form.
And can place this field anywhere on the form they want.