a81c0a21

By: Tom Sydney Kerckhove <syd@cs-syd.eu>

centjes-stripe: no module of only types

Each type now sits with the functions that are about it, and the ones only one
module ever needed sit in that module:

* StripeCurrency and StripeTimestamp get a module each, with their conversions.
* Payout, its identifier, its status and the two functions about them get one.
* ReportTypeId and ReportType join the reports module, which is what they are for.
* The report-run types and the list wrapper move into the API module, which was
  the only thing that ever used them.

The specs split the same way, and the codec roundtrip they share sits with the
generators it needs.

Timeline