avro Directory Reference

Files
	avro_constants.h
	Define Avro metadata constants used by Iceberg.
	avro_metrics.h
	Compute Iceberg metrics for Avro data files.
	avro_reader.h
	Provide the Avro file reader interface.
	avro_register.h
	Provide functions to register Avro implementations.
	avro_writer.h
	Provide the Avro file writer interface.