Remap specimen data on migration to lajistore

[AnniinaK]

Notes/reminders

• Preferred identification from string to boolean (do schema change just before going to production, leave this field's data out when doing test migrations). Remember to include in production data.
• Unreliable fields to json path
• unreliable fields from string to array
• unreliable fields non-field name contents??? --> notes field
• sampling area size in square meters from decimal to string in schema

Do these changes just before going to production, during the migration downtime