Data block specific functions

Defines
#define	cif_block_free
	An alias for cif_container_free.
#define	cif_block_destroy
	An alias for cif_container_destroy.
#define	cif_block_create_frame
	An alias for cif_container_create_frame.
#define	cif_block_get_frame
	An alias for cif_container_get_frame.
#define	cif_block_get_all_frames
	An alias for cif_container_get_all_frames.