This commit changes how the various http endpoints are registered;
previously we had to define the handler function in one place,
then in another, explicitly register that handler with a path
and operation type with the router. If we wanted to also export
documentation about that method, we would need to annotate the handler
with a duplicate of the path and method type.
There was a decent amount of boiler plate and it was very easy to omit
some of that registration information, or for it to potentially drift
or be mistranscribed.
This commit eliminates most of the boiler plate; now we require that
every endpoint be annotated with the utoipa::path macro, which
centralizes the handler, path and method type definition in one place.
To register the route and docs we now have a much simpler
`router_and_docs!` macro that can register both the with the axum router
and with the openapi docs machinery.
Wez Furlong
a8163b6e48