BI-2743 - Create Sub Entity Dataset, create obs level

[nickpalladino]

Description

Story: BI-2743

• Create new /observationlevelnames when creating subentity dataset
• Added tests

Dependencies

• bi-web feature/BI-2758
• brapi-server breedinginsight/brapi-java-server:pr-17 docker image

Testing

Acceptance criteria in BI-2758 & BI-2743

Checklist:

• I have performed a self-review of my own code
• I have tested my code and ensured it meets the acceptance criteria of the story
• I have tested that my code works with both the brapi-java-server and BreedBase
• I have create/modified unit tests to cover this change
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to documentation
• I have run TAF: <please include a link to TAF run>

[HMS17]

Code looks good. Like with BI-2758, needs to be tested again once brapi capitalization fix implemented.