Low-level IO Commands

• Opening, Closing and Copying Databases
• io_read_database and io_write_database
• io_read_reading and io_write_reading
• io_read_contig and io_write_contig
• io_read_annotation and io_write_annotation
• io_read_vector and io_write_vector
• io_read_template and io_write_template
• io_read_clone and io_write_clone
• io_read_reading_name and io_write_reading_name
• io_add_* commands and io_allocate