Base service tests

See merge request xmachac5/pa165-airport-project!25

Xmachac core airplane

See merge request xmachac5/pa165-airport-project!24

Merge xkridl-core-airport into milestone-02

See merge request xmachac5/pa165-airport-project!23

Core airport services unit tests

See merge request xmachac5/pa165-airport-project!22

Add Docker/Podman compose

See merge request xmachac5/pa165-airport-project!21

Core flights stewards

See merge request xmachac5/pa165-airport-project!19

Corresponding REST endpoints are already present in the AirportController

It is missing to implement also methods assigning relationships, e.g. addArrivingFlightAssignment

With this field would be problems when updating / mapping. There will be created methods for assigning city to particular airport in one of the future commits.

It's remaining to implement methods involving assignment of Country to City