Added metrics support for multiclass-multioutput classification

Fix for #3453 
Ping @arjoly . Added support for `zero_one_loss` and `accuracy_score`

@arjoly I tried to raise an `Exception` but i dont know some metrics are not raising it. As i am looping over it in my code i am not able to trace the metrics. What do you suggest? And yeah in order to fix this we might have to explicitly block the multiclass-multioutput feature in all these metrics.