separates objects into different files.
Starts using test-driven code using buster.

First test passes successfully.
All remaingin test to be transferred from ugly_stuff into test fiels
Keeps adding unit tests
Starts adding tests for group
Implements test for is_present, not implemented yet
Prepares next implementations. finishes transferring ugly_stuff into test folder. Next step is to run all tests autmatically
Creates friend_list to ease future friends handling in group
in list tests pass successfully
Removes dependancy to friend in group
Modifies in_list to take string in input
Finishes implementing add_relation
removes TODO