add myLength, myLength_test
add cycle, cycle_test
add unzip, unzip_test
add nexts, nexts_test
move testfiles to test dir
move testfiles to test dir
add depthSearch, depthSearch_test
add tcLength, anfify and their tests
add orify adn orifi
add mutualRecursion, mutualRecursion_test
add flat, flat_test
add deepClone, deepClone_test
Merge branch 'sec06'