Hi Everyone,

I cut-over to a wider AES implementation. Its the implementation that Wei 
uses for AESNI. Its on my testing fork at the moment. Also see 
https://github.com/noloader/cryptopp/commit/f2a303c30b5256d3.

The numbers are very good for ECB, CTR and CBC. ECB dropped from 2.3 cpb to 
1.0 cpb. CTR dropped from 2.5 cpb to 1.1. And CBC dropped from 3.7 to 2.6 
cpb. OFB and CFB stayed about the same.

Testing also shows we don't want to unroll loops when running 4 lanes at a 
time. Things slowed down by 0.1 cpb.

Jeff

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