Untranspose bits within bytes using AVX.
Scalar untranspose of bits within bytes.
Additional profiling tests.
Profile tests for scalar shuffle dev.
Experiment with compilor optimized shuffle.
Revert "Experiment with compilor optimized shuffle."

This reverts commit d577386ff9167bc2e8ac8ebd0306b02489261aa2.
Working AVX unshuffler, but cleanup and further optimization needed.
Cleanup of AVX unshuffle code.
Merge pull request #13 from kiyo-masui/AVX_unshuffle

AVX unshuffle