Update VectorClass to 1.28
Changelog since last version.
2017-05-02 version 1.28
- Fixed problem with Apple Clang version 6.2 in vectorf128.h
- Fixed return type for Vec8sb operator > (Vec8us, Vec8us)
- cpuid function modified in instrset_detect.cpp
2017-02-19 version 1.27
- fixed problem with scatter functions in MS Visual Studio