ChaCha20

Topics
	ChaCha20 AVX2
	ChaCha20 using AVX2 instructions.
	ChaCha20 AVX512
	ChaCha20 using AVX512 instructions.
	ChaCha20 SIMD
	ChaCha20 using SIMD instructions.

Files
file	chacha.cpp
file	chacha.h
	Internal Header.

Detailed Description