Add the Data wrapper class

[vkbo]

Summary:

• Add a general checkUUID function that can be used by all classes.

Related Issue:

Suggested reviewer(s):

Reviewer checklist:

• [ ] The headers of all files contain a reference to the repository license
• [ ] 100% test coverage of new code
• [ ] All tests are passing
• [ ] All names (e.g., files, classes, functions, variables) are explicit
• [ ] Documentation (as docstrings) is complete and understandable