[9] RFR 8157495: SHA-3 Hash algorithm performance improvements (~12x speedup)

[Valerie Peng]

Tony,

Can u please help reviewing this? Most if not all of the changes here 
are performance enhancements suggestions from the performance team.
I polished them and then updated the java.security file to add SHA-3.

Webrev: http://cr.openjdk.java.net/~valeriep/8157495/webrev.00/

Thanks,
Valerie