Added tests and refactored

Code/Exec.py

.../MonoMultiViewClassifiers/MonoviewClassifiers/Adaboost.py

...MonoMultiViewClassifiers/MultiviewClassifiers/__init__.py

Code/MonoMultiViewClassifiers/utils/Dataset.py

Code/Tests.py

Code/Tests/Test_MonoviewClassifiers/__init__.py

Code/Tests/Test_MonoviewClassifiers/test_Adaboost.py

Code/Tests/Test_utils/test_execution.py

Code/Tests/test_ExecClassif.py

Code/__init__.py

Versions.py