Corrected multiple errors on multiclass classification

Code/MonoMultiViewClassifiers/ExecClassif.py

.../MonoMultiViewClassifiers/Monoview/ExecClassifMonoView.py

Code/MonoMultiViewClassifiers/Multiview/ExecMultiview.py

...ewClassifiers/MultiviewClassifiers/Fusion/FusionModule.py

...fiers/Fusion/Methods/EarlyFusionPackage/WeightedLinear.py

...sifiers/MultiviewClassifiers/Fusion/Methods/LateFusion.py

...ssifiers/Fusion/Methods/LateFusionPackage/SCMForLinear.py

...ssifiers/Fusion/Methods/LateFusionPackage/SVMForLinear.py

...ViewClassifiers/MultiviewClassifiers/Mumbo/MumboModule.py

Code/MonoMultiViewClassifiers/utils/HyperParameterSearch.py

Code/MonoMultiViewClassifiers/utils/Multiclass.py

Code/MonoMultiViewClassifiers/utils/execution.py

Code/Tests/Test_utils/test_multiclass.py

Code/Tests/test_ExecClassif.py