[clinical] Improve harmonization of ACRIN and non-ACRIN tables schema

[fedorov]

I suggest it makes sense to do the following:

• remove columns that are probably not of interest to the users (those would still be available in the clinical_notes.json): sources, column_number, num_values, rng
• use values.option_code instead of introducing values.option_value
• table_name should match the suffix of the table in BQ - for most of the tables, it would be "clinical"

[G-White-ISB]

This items are now addressed in idc-dev-etl.clinical.clinical_meta

[fedorov]

Yes, all of this I think is addressed now, thank you!