[FEATURE] Prefix the chopper service path with the basePath of the swagger file

[romainboucher]

Hello,
for my company I need to prefix the generation of swagger service by the basePath present in the swagger.json file.

I use an identical custom chopper client for several swaggers. Example :

client = ChopperClient(
          baseUrl: Uri.parse(AppConfig.instance.baseUrl!),
          client: NativeHttpClient.instance,
          interceptors: [
            HttpLoggingInterceptor(),
            AuthenticationInterceptor(),
          ],
          services: [
            Authentification.create(),
            MesInterventions.create(),
          ],
        );

So I access the swaggers services like this:

client.getService<Authentification>()

I lose the basePath of the swagger file which can be different depending on my different swaggers.

I created a pull request which explains and solves my problem.