[SYNPY-1590] Add docker_commit_services module to codebase

[jaymedina]

Problem:

Some unit tests for the Submission OOP were failing because the codebase was not exporting the docker_commit_services module and its get_docker_tag function and this module was not committed to the repository:

Example

=========================== short test summary info ============================
FAILED tests/unit/synapseclient/models/async/unit_test_submission_async.py::TestSubmissionAsync::test_fetch_latest_entity_docker_repository_async - AttributeError: module 'synapseclient.api' has no attribute 'docker_commit_services'
FAILED tests/unit/synapseclient/models/async/unit_test_submission_async.py::TestSubmissionAsync::test_fetch_latest_entity_docker_empty_results_async - AttributeError: module 'synapseclient.api' has no attribute 'docker_commit_services'
FAILED tests/unit/synapseclient/models/async/unit_test_submission_async.py::TestSubmissionAsync::test_fetch_latest_entity_docker_complex_tag_selection_async - AttributeError: module 'synapseclient.api' has no attribute 'docker_commit_services'
...
unit_test_submission.py::TestSubmission::test_fetch_latest_entity_docker_repository - AttributeError: module 'synapseclient.api' has no attribute 'docker_commit_services'
FAILED tests/unit/synapseclient/models/synchronous/unit_test_submission.py::TestSubmission::test_fetch_latest_entity_docker_empty_results - AttributeError: module 'synapseclient.api' has no attribute 'docker_commit_services'
FAILED tests/unit/synapseclient/models/synchronous/unit_test_submission.py::TestSubmission::test_fetch_latest_entity_docker_complex_tag_selection - AttributeError: module 'synapseclient.api' has no attribute 'docker_commit_services'
...

Solution:

Add docker_commit_services to repo and export its function on the relevant __init__.py

Testing:

async unit tests:

sync unit tests:

[BryanFauble]

Unit test failures were patched that this PR was created for. Other unit test failures are patched in develop, so I am going to just go ahead and merge this into develop.