Implementation comparison: `crypto_sign/sphincss128harakasimple`

Operation	`crypto_sign`
Primitive	`sphincss128harakasimple`
Description
Designers
Implementations	`aesni`
	`ref`

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Details (compiler options, compilation failures, error messages, etc.)

amd64; 2015 Intel Xeon E3-1220 v5; 4 x 3000MHz; samba, supercop-20190816

amd64; 2013 Intel Xeon E3-1220 v3; 4 x 3100MHz; hiphop, supercop-20190816

amd64; 2013 Intel Xeon E3-1275 V3; 4 x 3500MHz; titan0, supercop-20190816

aarch64; 2018 Broadcom BCM2837B0; 4 x 1400MHz; pi3bplus, supercop-20190803