move content from bioscales.yaml into nmdc.yaml and delete bioscales Submission Portal template

[turbomam]

@mslarae13 I removed all mentions of bioscales from

• bioscales.yaml (and migrated the slots into nmdc.yaml)
• sheets-for-nmdc-submission-schema_MLS
• https://github.com/microbiomedata/sheets_and_friends/blob/issue-163-mixs-subsetter/artifacts/sheets-for-nmdc-submission-schema_MLS-modifications_long.tsv