Add HBase snapshot property

This updates test environment to match what installer does for this
property.

https://review.trafodion.org/#/c/172/
https://github.com/trafodion/install/commit/dc6b4184c5982525812efc12c0e442ca46c8c2a9

Change-Id: Ic9642efa92cf6973d4a5c554b614b7562b7cdd47
Merge "Add HBase snapshot property"