Changes to Add Screenables Batch

added the optional property primary_sources_preview/items/ephemeris/anyOf[subschema #1: EphemerisMetadataWithRSO]/covariance_generated to the response with the 200 status

added the optional property secondary_sources_preview/items/ephemeris/anyOf[subschema #1: EphemerisMetadataWithRSO]/covariance_generated to the response with the 200 status

added the required property allow_synthetic_covariance to the response with the 200 status

added the optional property engine_used to the response with the 200 status

added the required property engine to the response with the 200 status

added the optional property primary_rsos_preview/items/auto_maneuvering to the response with the 200 status

added the optional property secondary_rsos_preview/items/auto_maneuvering to the response with the 200 status

added the optional property primary_sources_preview/items/propagation/anyOf[subschema #1: PropagationRead]/enable_discontinuities to the response with the 200 status

added the optional property secondary_sources_preview/items/propagation/anyOf[subschema #1: PropagationRead]/enable_discontinuities to the response with the 200 status