bump benchmark version to 1.2.1

Merge pull request #285 from tevador/pr-120

Update README and benchmark version

Merge pull request #225 from SChernykh/msvc-debug-fix

Fixed a crash in MSVC Debug and RelWithDebInfo builds

Merge pull request #213 from hyc/m1typo

Fix typo for M1 Mac build

add --noBatch benchmark option

Benchmark version

Fix symbol collisions with blake2b (#145)

Benchmark v1.1.5

Benchmark v1.1.4

Benchmark v1.1.3