Feature: support management of bitrot

[TheMeier]

GlusterFS has a feature to detect type of disk errors where data is silently corrupted with no indication from the disk to the storage software layer than an error has occured.

http://gluster.readthedocs.io/en/latest/Administrator%20Guide/Managing%20Volumes/#bitrot-detection

It would be useful to have the possibility to manage these feature via the puppet module.