test-project: fixes for development of kits functionality

[webern]

Issue number:

Follows #220 (technically it doesn't need to but chaining it into the variant-insensitive branch helps me built up all the code I need to merge and this is an easy-to-review unit in that chain)

Description of changes:

Fixes to the test project that I need to make kit development work.

Testing done:

In subsequent work I was able to build a kit.

Terms of contribution:

By submitting this pull request, I agree that this contribution is dual-licensed under the terms of both the Apache License, version 2.0, and the MIT license.

[webern]

https://github.com/bottlerocket-os/twoliter/compare/b733d4c9565454c564d036434b3eaad880d0808b..64620062822be02402dcdedfc8efa0fb06380dc5

Rebase

[webern]

Oops. Didn't mean to close it. Re-opening.