Removed future files

cp/ex04/mathematics.py

cp/ex04/palindrome.py

cp/ex04/parenthesis.py

cp/ex04/play_hangman.py

cp/ex04/prefix.py

cp/ex09/__init__.py

cp/ex09/rectangle.py

cp/ex09/sinus.py

cp/ex09/vector.py

cp/ex10/__init__.py

cp/ex10/hospital.py

cp/ex10/inherit.py

cp/ex10/symbolic.py

cp/project2/__init__.py

cp/project2/project2_grade.py

cp/project2/project2_tests.py

cp/project2/unitgrade_data/Hangman.pkl

cp/project2/unitgrade_data/HangmanAvailableLetters.pkl

cp/project2/unitgrade_data/HangmanGuessedWord.pkl

cp/project2/unitgrade_data/HangmanIsGuessed.pkl