Merge branch 'core-flights-stewards' into 'milestone-02'

core/openapi.yaml

...java/cz/muni/fi/pa165/core/data/domain/FlightSteward.java

...ata/repository/flightsteward/FlightStewardRepository.java

...muni/fi/pa165/core/exceptions/ResourceNotFoundAdvice.java

...i/fi/pa165/core/exceptions/ResourceNotFoundException.java

...ava/cz/muni/fi/pa165/core/facade/flight/FlightFacade.java

...cz/muni/fi/pa165/core/facade/flight/FlightFacadeImpl.java

...a/cz/muni/fi/pa165/core/facade/steward/StewardFacade.java

.../muni/fi/pa165/core/facade/steward/StewardFacadeImpl.java

.../main/java/cz/muni/fi/pa165/core/mapper/FlightMapper.java

...main/java/cz/muni/fi/pa165/core/mapper/StewardMapper.java

...ain/java/cz/muni/fi/pa165/core/rest/FlightController.java

...in/java/cz/muni/fi/pa165/core/rest/StewardController.java

...ava/cz/muni/fi/pa165/core/service/common/BaseService.java

...cz/muni/fi/pa165/core/service/common/BaseServiceImpl.java

...a/cz/muni/fi/pa165/core/service/flight/FlightService.java

.../muni/fi/pa165/core/service/flight/FlightServiceImpl.java

...cz/muni/fi/pa165/core/service/steward/StewardService.java

...uni/fi/pa165/core/service/steward/StewardServiceImpl.java