Group id rename into ExpediaGroup

[fborriello]

Description

As per the transition to the new repository, the project groupId and the packages need to be renamed from hotels to expediagroup.

As a consequence of this change the library can be added inside any maven project by adding this dependency:

<dependency>
    <groupId>com.expediagroup.beans</groupId>
    <artifactId>bull-bom</artifactId>
    <version>x.y,z</version>
</dependency>