0.3.0 release
update build-CI (#2) * add countAbove(), countLevel(), countBelow(). findMin(), findMax() * add setBucket(), param for clear() * update build-CI * update readme.md + badges * add histogram8 and histogram16 derived class
update build-CI (#2) * add countAbove(), countLevel(), countBelow(). findMin(), findMax() * add setBucket(), param for clear() * update build-CI * update readme.md + badges * add histogram8 and histogram16 derived class