Arm

[cryptogenomicon]

A heads up on what I'm about to start doing, based on looking through the diff:

• github says there's conflicts, so I'm going to do the merge manually;
• I want to rename arm_vector.h, or perhaps better, incorporate it into esl_neon.h, just to keep .h files all starting with esl_. I'll try to put its contents in esl_neon.h, and I'll check to make sure that works - but if you know it doesn't, let me know. Do you have a good reason that it's separate?
• The "Incept:" lines of function comment headers are cut/paste from esl_sse, so they're not accurate for esl_neon. I'll just delete them.
• I'm worried about portability of __attribute__ in esl_sq.h, so I will wrap that somehow in a preprocessor conditional.
• esl_sse_DoAbsolutelyNothing() should be esl_neon_... in esl_neon.c; I think if both neon and sse are undefined the compiler will choke on a doubly defined function. I'll rename it.

[cryptogenomicon]

I'm also going to rename the __arm128i (etc.) typedefs, to esl_neon_128i_t (etc.). I think variables that start with __ are reserved for the system and the compiler in C.

[cryptogenomicon]

Fini. Thank you!