Changes to support removal of Germplasm cache

[jloux-brapi]

Description

Story: BI-2905

Changes to use brapi germplasmDbId instead of bi generated exref

Dependencies

epic/BI-2862 branch of brapi prod server
feature/BI-2904 of biapi

Testing

Full regression for most germplasm features, excluding sample importing, which will be dealt with once develop bi-api code is merged and this ticket

This features include:

• Importing Germplasm with various use cases, including parent lookups via existing germplasm lookups or via-entry numbers
• Downloading imported germplasm
• Viewing imported germplasm in the Germplasm tab, and clicking all associated links in the rows including the GID, both parent links, and Show Details
• Clicking on existing Germplasm brings up the Pedigree Viewer, where you can click on other germplasm in the hierarchy tree. These should load without error. NOTE: A production bug was discovered clicking back in these scenarios, these changes did not cause this issue)

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 commented my code, particularly in hard-to-understand areas
• I have either updated the source of truth or arranged for update with product owner if needed https://breedinginsight.atlassian.net/wiki/spaces/BI/pages/1559953409/Source+of+Truth
• I have run SiteImprove on pages impacted by changes

[humsika]

Code looks good to me and also validated it manually through UI.