Valid metadata in plantcv-workflow.py cannot be duplicated

[nfahlgren]

Description

Some of the filenames from the DDPSC phenotyping system have more metadata variables in the filenames than we have terms to account for. In the case I am working on it's not a term I need to keep but we cannot reuse the other term. To get around this we should either add more terms and/or make other reusable.

Details

In my specific case we could add a term for "velocity" (how fast the plant stage turns). We could consider adding other terms now and/or aliases potentially.

Completion Criteria

• [ ] Update plantcv.parallel.parsers and/or plantcv-workflow.py