[Internal] [Feature] Add Expected Bacterial Fields in Metadata

[ankushkgupta2]

What is the Feature Related To? Please Provide a Description.
Explore and implement certain core fields that are checked during metadata validation for bacterial samples only.

Potentially the following so far:

• serotype (for Biosample)
• sequence type (for Biosample)
• toxigenicity (for Biosample)

Place an ❌ in a Box that Best Matches the Feature's Importance:

• 1 - Most important (absolutely integral and will not use codebase at all without it)
• [] 2-4 - Moderate (still using codebase for other functions but is serving as a blocker for future use-cases)
• [] 5 - Least important (would like to see but there are no stringent expectations nor urgency for current/future use-cases) 

Any Additional Context or Information? Has There Been Any Progress Made So Far Towards this Request? Any Helpful Resources to Reference? Screenshots or Links?
N/A

[jessicarowell]

This will be included as custom fields when users can choose their own biosample package