Adding UT for Stats prefix-suffix query
Adding StatWalker code for generic parsing of StatOracle structures
Address review comments

minor fix for stats prefix-suffix test
Change-Id: Ib1a821502d4858da1d5508823abd8f1a4e19c03d
Merge "Adding UT for Stats prefix-suffix query Adding StatWalker code for generic parsing of StatOracle structures Address review comments"