A3.3 Integrate the Pricing4Saas framework in PetClinic

[benjimrfl]

As a group, integrate the Pricing4SaaS framework in your Petclinic application following the branching strategy defined by the group in S1. The different features of the Petclinic application, such as the hotel and adoptions, must be configured according to the pricing plans defined in the CA specified in A3.2. As a final step, after both A3.2 and A3.3 changes are merged in the development branch, prepare a release of the Petclinic project, following the same procedure as in previous releases (see A2.3 for references).