Remove startContainers.sh in favor of Docker Compose

[gilbertotcc]

This PR would like to be an enhancement of the project. It removes startContainers.sh script in favor of Docker Compose that runs the containers required by the examples.

Furthermore, by means of gradle-docker-compose-plugin Gradle plugin (see here), Docker Compose is fully integrated with Gradle. That means:

• compose up and compose down are made before and after tests;
• containers can be started with composeUp task and stopped with composeDown task.

[gilbertotcc]

Some tests fail. I think is due to some library versions. I'm going to fix them. I've already have a working branch at gilbertotcc/IDDD_Samples. I just need to check which are the libraries that I have to update (making less changes as possible).

[gilbertotcc]

Issue has been fixed. See commit Fix database creation and update dependencies for changes.