Dynamic Payment Providers in the Admin

[SGFGOV]

Currently in the admin

const providerDescriptors: { [providerKey: string]: Option } = is a static list,
can this be made dynamic by exposing the available payment providers via an API. a simple API list route should do it.
else every time we add a new payment provider we need to manually edit this list, which is poor developer experience.

Moreover there are hundreds of payment providers globally. One version of the admin interface should ideally be enough to configure them, else each time a new payment provider is added we need to manually update this list. Now this might be ok if we have one store, but if we have several global stores, this might not work.

Best regards