[DOM-39688] - add project tags functionality

[ddl-olsonJD]

Link to JIRA

DOM-39688

What issue does this pull request solve?

Unable to add new tags to an existing project, or reading tags already assigned to a project.

What is the solution?

Allow the addition of new tags to an existing project, or reading tags already assigned to a project.

Testing

• ran multiple local test adding and removing tags to project
• Unit test(s)

Pull Request Reminders

• Has relevant documentation been updated?
• Does the code follow [Python Style Guide] (https://black.readthedocs.io/en/stable/the_black_code_style/current_style.html)
• Update the changelog
• Are the existing unit tests still passing?
• Have new unit tests been added to cover any changes to the code?
• Has the JIRA ticket(s) been linked above?

References (optional)

• Add/get project tags #21