added extra test files. there are new api functions im starting to put all of them into a test function now. later this will become a real unit test function

Rewrote argument handling of population class, added export functions. Added python-c-bindings to return store and other small changes

building population code. added some grid options, loading custom logging code now works (but not yet on runing the population tho)

created tet directory with start of test functions. also fixed small bugs and finished the help function