update tests

    add algo_incr test
    relaunch all tests to have 100 values w/ algo running in ~4 sec
    rename .cvs by csv (comma separated values)
fix: remove signed/unsigned warning
update performance testing generation algorithm

    don't generate all values everytime, instead generate what is needed
    to be generated, ie the difference between the last n and the current
Merge branch 'master' of github.com:M1Luminy/TP_Complexite