Best practice 1 : Retry

In order to add proper retries to the sdk, we can try to implement retry middlewares with different retry strategies. prefrably make a PR per middleware to keep focus on each case.

create minimum 5 Middleware one for each type of retry:
- [ ] Exponential back-off
- [ ] Incremental intervals
- [ ] Regular intervals
- [ ] Immediate retry
- [ ] Randomization

see here for technical details https://docs.microsoft.com/en-us/azure/architecture/best-practices/transient-faults

linked to https://github.com/commercetools/rmf-codegen/issues/192