[BI-2055] - Remove missingValueString tablesaw values

[HMS17]

Description

Story: BI-2055 - Remove missingValueString tablesaw values

NOTE: This is a redo of #1, with the difference of not including null in the values to be removed due to that being responsible bi-api unit test failures.

Default tablesaw behavior silently converts certain values to an empty string when processing tables, which can lead to unexpected behavior when importing files in DeltaBreed. This follows up on work implemented in BI-1993 to also remove this silent conversion for N/A, NaN, *, and null values and update associated tests.

Dependencies

n/a

Testing

Performed locally, very aggravating to set up so unclear what testing can be done by others before merging and seeing if bi-api unit tests pass?

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>