Add get_taxonomy_by_corpus_type_name and test

[diversemix]

What's changed

Proposed version

Please select the option below that is most relevant from the list below. This
will be used to generate the next tag version name during auto-tagging.

• Skip auto-tagging
• Patch
• Minor version
• Major version

Visit the Semver website to understand the
difference between MAJOR, MINOR, and PATCH versions.

Notes:

• If none of these options are selected, auto-tagging will fail
• Where multiple options are selected, the most senior option ticked will be
  used -- e.g. Major > Minor > Patch
• If you are selecting the version in the list above using the textbox, make
  sure your selected option is marked [x] with no spaces in between the
  brackets and the x

[linear]

PDCT-1285 Add a skeleton endpoint to the Admin API for ingest

[annaCPR]

Great