GUI build: ensure all tests are being run

As a developer I would like the GUI build to run all of the unit tests.

Currently at least the following tests are not being run:
- `model.tests`
- `logger.tests`

We should have a check that projects ending in `.tests` appear in the `client.tycho.parent` file, and fail the build if this is not true.

Found when creating script generator build.

### Acceptance criteria

- [ ] GUI build fails if any test module is not listed in `client.tycho.parent/pom.xml`
- [ ] GUI build is running all tests & therefore passes