Add taxonomy for dependency namespace

Brian Williamsrequested to merge
add-properties into main

Adds the initial properties for the GitLab CycloneDX Taxonomy.

gitlab-org/gitlab#366365 (closed) covers this work.

These properties are based on discussions from gitlab-org/gitlab#366194 (comment 1003429897) and gitlab-org/gitlab#367310.

Edited by Brian Williams

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