add report api for Timer.
add benchmark tool for DAC.
optimize optimizationk function based on sorting.
optimize `optimizationk` based on compute bit count on each element.
add complete benchmarking for DAC
fix a huge bug in dacs.cpp.
fix a bug in DACWrapper.h
clean code in dac.
Merge branch 'feature/computeBitsForeachElement' into develop
switch to compute bit count for each element algorithm based on benchmark.
fix bugs in dac.
optimize splitString