[vector] Extensive "real-life" Vector API benchmark

[Lev Serebryakov]

 Ok, here is my 113 vector operations (about 50 distinctive one, really)
implemented with current Vector API.

 https://github.com/blacklion/panama-benchmarks/tree/master/vector

 They are modelled after pure-java-8 implementation, and could be
benchmarked using pure-java-8 implementation as baseline.

  README.md explains everything in details.

 It is part of same repository, which contains my Foregin/FFT benchmarks.

-- 
// Black Lion AKA Lev Serebryakov