Merge pull request #1 from d4rk1/master

Loesung fuer erste Aufgabenserie in Python.
commit

hier wurde ein Kommentar hinzugefügt
HA_4

Added first header struct_date.h with date struct and 3 functions
In struct_date.cpp definded the functions.
added some files
Commit test .cpp

- check function for date calculation
-added  test.cpp with assert function
- changed unsinged short int to signed short int
Added right logical desicions A1
now the commit
added
added person.h

-changed checker to is_vlaid
- changed if questions in struct_date.h
- added some new tests