Addition of CCs/Bank accounts even if form elements not present on page load.

If the form elements for adding bank accounts or credit cards are added to the DOM after initial page load (ie AJAX) the submit button is not present to attach .click() and trigger the calls to balanced.

Fixed by moving each file into their own function, called by a jQuery .on handler on the submit button class which must exist.

Allows the addition of either bank accounts/credit cards even if the form is added after initial page load.
@dotmartyr I don't follow how the form will not have been loaded but the submit links for those forms will have... I think it makes more sense to add the hooks with the forms being loaded, whether that is on initial page load or ajax.