- Handling `std::set` in cpp-restdsk
- Member variables using `std:set` added to `Pet` in cpp-restsdk 3.0 Petstore sample
[cpp-pistache-server] taking into account a remark on this issue about cpp-pistache-server and its set management
- Switching `std::vector` to `std::set` for openapi set type in cpp-pistache-server
