[Internal] [Bug] Metadata validation required fields needs to be fixed

[jessicarowell]

Now that we support multiple BioSample packages, we need to adjust the required fields in metadata validation.

Run environment (container, cloud service, HPC, platform, etc.)

Command to replicate the error:

Any Additional Context or Information?

Mandatory for all: sample_name, organism, collection_date, geo_loc_name (except OneHealthEnteric 1.0 - only sample_name, strain)
At least one required:

• strain, isolate AND host, isolation_source (Microbe 1.0)
• host, isolation_source (Metagenome 1.0)
• host, lab_host (Virus 1.0)
• strain, isolate (Beta-lactamase 1.0, Pathogen-clin 1.0, Pathogen-env 1.0)