Cambiada estructura de paquetes e incluído método HotelService

.../src/main/java/com/uva/apis/hotels/HotelsApplication.java

...els/src/main/java/com/uva/apis/hotels/api/BookingAPI.java

...els/src/main/java/com/uva/apis/hotels/api/ManagerAPI.java

...n/java/com/uva/apis/hotels/config/RestTemplateConfig.java

.../main/java/com/uva/apis/hotels/config/SecurityConfig.java

...java/com/uva/apis/hotels/controllers/HotelController.java

...om/uva/apis/hotels/exceptions/GlobalExceptionHandler.java

...om/uva/apis/hotels/exceptions/HotelNotFoundException.java

...uva/apis/hotels/exceptions/InvalidDateRangeException.java

...m/uva/apis/hotels/exceptions/InvalidRequestException.java

...a/com/uva/apis/hotels/filter/JwtAuthenticationFilter.java

.../com/uva/apis/hotels/interceptor/AuthHttpInterceptor.java

...els/src/main/java/com/uva/apis/hotels/models/Address.java

...otels/src/main/java/com/uva/apis/hotels/models/Hotel.java

...hotels/src/main/java/com/uva/apis/hotels/models/Room.java

...ls/src/main/java/com/uva/apis/hotels/models/RoomType.java

...va/com/uva/apis/hotels/models/external/users/UserRol.java

...ava/com/uva/apis/hotels/repositories/HotelRepository.java

...java/com/uva/apis/hotels/repositories/RoomRepository.java

.../main/java/com/uva/apis/hotels/services/HotelService.java