image: Refactor unit test to reflect recent split

Split image into image::api and image::registry in the test to
reflect recent changes.
telemetry: Refactor unit test to reflect recent split

Split telemtry classes into telemetry::* in the test to
reflect recent changes.
compute: Refactor unit test to reflect recent split

Split compute classes into compute::* in the test to
reflect recent changes.
Merge pull request #472 from enovance/split_unit_tests

Split unit tests