Support Stripe payments with some new code and some rearranged code ...

Support Stripe payments with some new code and some rearranged code ...

... behind the open-ils.circ.money.payment method.

- Also add Business::Stripe as a CPAN module to the pre-reqs installers.
- If payment processor is Stripe, only show form if Javascript enabled.

Our implementation of payments via Stripe doesn't work without Javascript.
That's part of the point. Using Stripe really limits a site's worries
about PCI compliance because users' credit card number and security
codes are never transmitted to the [Evergreen] server at all.  That data
goes to Stripe instead (using Javascript) and from that we get back a
one-time token from Stripe to give to our server instead.

Thanks to Jason Boyer at the Indiana State Library for recognizing the
value of supporting approaches like that in Evergreen and for starting
the work.

Signed-off-by: Lebbeous Fogle-Weekley <lebbeous@esilibrary.com>