Audit user changes

[josegar74]

This change request allows to audit the changes the users information, using Hibernate Envers.

The feature is disabled by default and can be enabled in the system settings:

Once enabled, changes to users are audited and can be consulted by administrators in the users form or the users access report:

The feature can be extended to support additional types of entities like Groups.

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Initially the pull request used Javers, but due to an incompatible version of picocontainer, used also in Geotools, has been changed to Hibernate Envers.

Checklist

• [X] I have read the contribution guidelines
• [X] Pull request provided for main branch, backports managed with label
• [ ] Good housekeeping of code, cleaning up comments, tests, and documentation
• [X] Clean commit history broken into understandable chucks, avoiding big commits with hundreds of files, cautious of reformatting and whitespace changes
• [X] Clean commit messages, longer verbose messages are encouraged
• [ ] API Changes are identified in commit messages
• [ ] Testing provided for features or enhancements using automatic tests
• [ ] User documentation provided for new features or enhancements in manual
• [ ] Build documentation provided for development instructions in README.md files
• [ ] Library management using pom.xml dependency management. Update build documentation with intended library use and library tutorials or documentation