src: added intel assembly for sha algs

[edtubbs]

• Updated SHA256/SHA512 algorithms using Intel AVX/SSE assembly.
• Updated CMake and Makefile for AVX/SSE, NASM and assembly support.
• Added benchmarks for SHA256 and Scrypt with assembly optimizations.
• Added AVX/SSE and benchmark configuration options.

[xanimo]

only nit so far is to add bench to .gitignore

[xanimo]

everything looks good to me with exception to adding bench to .gitignore. i'll ack after that. pretty stoked to get benchmarks in here! here are my results:
https://gist.github.com/xanimo/017c64171781eca50d0df497a3c637f7

[xanimo]

Not entirely sure what's going on here but have included output when building with --enable-intel-sse:

/bin/bash ./libtool  --tag=CC   --mode=link gcc -I./include -I./src/logdb/include -fPIC   -g -O2 -W -std=gnu99 -pedantic -Wall -Wextra -Wno-long-long -Wno-overlength-strings -msse4.2 -static  -o such src/cli/such-such.o libdogecoin.la src/secp256k1/libsecp256k1.la src/intel/sse_t1/sha1_one_block_sse.o src/intel/sse_t1/sha256_one_block_sse.o src/intel/sse_t1/sha512_one_block_sse.o -levent_core  -lunistring
libtool: link: gcc -I./include -I./src/logdb/include -fPIC -g -O2 -W -std=gnu99 -pedantic -Wall -Wextra -Wno-long-long -Wno-overlength-strings -msse4.2 -o such src/cli/such-such.o src/intel/sse_t1/sha1_one_block_sse.o src/intel/sse_t1/sha256_one_block_sse.o src/intel/sse_t1/sha512_one_block_sse.o  ./.libs/libdogecoin.a src/secp256k1/.libs/libsecp256k1.a -levent_core -lunistring
gcc: error: src/intel/sse_t1/sha1_one_block_sse.o: No such file or directory
gcc: error: src/intel/sse_t1/sha256_one_block_sse.o: No such file or directory
gcc: error: src/intel/sse_t1/sha512_one_block_sse.o: No such file or directory
make[1]: *** [Makefile:1234: such] Error 1
make[1]: Leaving directory '/mnt/source/repos/libdogecoin'
make: *** [Makefile:2469: all-recursive] Error 1

Building avx2 and scrypt-sse2 work fine but as soon as I purge the dir and run the process over something is not going right.

[xanimo]

Tested changes with xanimo@9bd9a32?diff=split&w=0 on ubuntu jammy and everything looks good. Here are my results: https://gist.github.com/xanimo/017c64171781eca50d0df497a3c637f7?permalink_comment_id=4994208#gistcomment-4994208

ACK