Add AirportMapper

core/src/main/java/cz/muni/fi/pa165/core/mapper/AirportMapper.java

+package cz.muni.fi.pa165.core.mapper;
+
+import cz.muni.fi.pa165.core.data.domain.Airport;
+import cz.muni.fi.pa165.core.model.AirportDto;
+import cz.muni.fi.pa165.core.model.NewAirportDtoRequest;
+import org.mapstruct.Mapper;
+
+@Mapper(componentModel = "spring")
+public interface AirportMapper {
+
+    Airport toEntity(AirportDto airportDto);
+
+    Airport toEntityFromNewRequest(NewAirportDtoRequest newAirportDtoRequest);
+
+    AirportDto toDto(Airport airport);
+}