Dynamically create extra columns for extra properties found in records

By default a table schema does not preclude records from having extra properties (unless the schema is `@sealed`). However, the table grid/viewer only shows columns for the fields defined in the schema (from the `describe_table` call). We would like to be able to dynamically detect extra properties in the records and show them as columns as well. I believe that had been done before, but hasn’t made it into the current studio:

https://github.com/HarperFast/hdbms/blob/archive/prod/src/functions/instance/getTableData.js#L6-L23