Change Billing Plan

Bearer authentication of the form Bearer <token>, where token is your auth token.

We ignore extra properties, other services might be responsible for adding to the organization document, we do not care about these extra fields.

TODO<mark>: We still need the extra bit for now since we still have some microservices, like workflow. However once we are a true big boi, we can use this model for the organization and not worry about other services adding to it.