add unit test basic functions
add unittest and add modules folder
Merge pull request #5 from yunfuliu/Python-unittest

Python unittest
modify py test
[cmake] move samples to install
[cmake] indicate the place of test progs
add libs for various envs
add fuzzy c means function
change author name
Merge pull request #6 from ocean6204/master

add fuzzy c means function
bug fixes
Update CONTRIBUTING.md
bug fixes
add example of fuzzyCMeans
add libs for various envs
bug fixes
Update CONTRIBUTING.md
bug fixes
add example of fuzzyCMeans
Merge branch 'master' of https://github.com/yunfuliu/pixkit