Fold `OracleTableRow` into embedded type system as `OracleRollableRow`

[rsek]

The material changes to the schema would be as follows:

• OracleTableRow schema renamed to OracleRollableRow, to follow the naming conventions used by other embed-only types.
• rows receive an OracleRollableRow embedded ID
  • On a primary OracleRollable: oracle_rollable.row:{oracleRollableID}.{rowIndex}
  • On an EmbeddedOracleRollable in a move: move.oracle_rollable.row:{moveId}.{oracleRollableKey}.{rowIndex}
  • On an EmbeddedOracleRollable in a truth option: truth.option.oracle_rollable.row:{truthId}.{optionIndex}.{oracleRollableKey}.{rowIndex}