minor, check for simd extensions before building simd blake, use the ANSI C version otherwise

Signed-off-by: Sebastian Freundt <hroptatyr@fresse.org>
test, provide regressions for echse(1) genuid command

Signed-off-by: Sebastian Freundt <hroptatyr@fresse.org>
Merge branch 'bld/non-x86'

* bld/non-x86:
  test, provide regressions for echse(1) genuid command
  minor, check for simd extensions before building simd blake, use the ANSI C version otherwise