Module for some gluster-block related helper
functions like block info validation, checking if block exists etc.
This module will call the functions in block_ops and the result will be
used for further operations.
These functions are either called from GlusterBlockBaseClass or can
be called directly from testcases.
Module for gluster-block helper functions like block_create, block_delete,
block_modify, block_info, block_list.
The functions here will either be called from GlusterBlockBaseClass or
block_libs.py or can be called directly from the testcases.
Signed-off-by: Bhumika Goyal <firstname.lastname@example.org>