Added week6

.gitignore

cp/ex06/__init__.py

cp/ex06/language.py

cp/ex06/letter.py

cp/ex06/multi_tap.py

cp/ex06/nato.py

cp/ex06/sentiment_analysis.py

cp/ex06/spell_check.py

cp/ex06/truncate.py

cp/ex06/word_histogram.py

cp/project3/__init__.py

cp/project3/project3_grade.py

cp/project3/project3_tests.py

cp/project3/unitgrade_data/WaterHeight.pkl

cp/project3/unitgrade_data/Week05BestBuy.pkl

cp/project3/unitgrade_data/Week05TicTacToeGetGameState.pkl

cp/project3/unitgrade_data/Week05TicTacToePrintBoard.pkl

cp/project3/unitgrade_data/Week05TicTacToeUpdateBoard.pkl

cp/project3/unitgrade_data/Week06MultiTap.pkl

cp/project3/unitgrade_data/Week06SentimentAnalysis.pkl