Change generated vector format

[kinap]

To accommodate the vector permutation scheme designed to improve emulation efficiency, the generator should produce data in the following format:

<128 bit state block (input data)><256-bit key><128 cipher text><192 cipher text><256 cipher text>

The key will be subdivided into smaller key sizes using the appropriate number of least significant bytes.

[kinap]

@pear7 heads up, I'll be tracking work here.

[pear7]

@kinap Is it too take to have the key subdivided using the most significant bytes? I think that is how it would naturally divide based on how our signals are set up.

[kinap]

@pear7 Shouldn't be a problem. Will be ready tonight.

[kinap]

Addressed in fe1e094. Old generator behavior preserved with -c flag.

Here is a quick and dirty verification I did:

@pear7 Do you need me to push generated vectors, or are you able to run the generator independently?