Add support of derivatives to Automatus

[jan-cerny]

Description:

If a derivative data stream (eg. ssg-cs9-ds.xml) is tested, Automatus will now automatically infer which product this derivative is derived from.

Rationale:

Fixes: #10677

Review Hints:

1. Build a product and its derivatives, for example: ./build_product rhel9 --derivatives
2. Run test scenarios while passing the derivative data stream to Automatus, for example: ./tests/automatus.py rule --datastream build/ssg-cs9-ds.xml --remove-platforms --remove-machine-only --libvirt qemu:///system ssgts_rhel9 selinux_state
3. verify that the automatus.py haven't traceback

[github-actions]

Start a new ephemeral environment with changes proposed in this pull request:

Fedora Environment

Oracle Linux 8 Environment

[codeclimate]

Code Climate has analyzed commit db3e7a1 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 56.8% (0.0% change).

View more on Code Climate.

[jan-cerny]

/retest

[openshift-ci]

@jan-cerny: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/images	db3e7a1	link	true	/test images

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[Mab879]

/tests images

[Mab879]

I can confirm that my reproducer in #10677 is fixed along with the provided example works.

Thanks for the fix!