Silencing EstimatorSelectionHelper() output during fit

[browshanravan]

Would it be possible to provide an argument for the EstimatorSelectionHelper() in order to silence its output (I use Jupiter-notebook) during fit procedure?

I was thinking something along the lines of

EstimatorSelectionHelper(models , params, verbosity=0).fit(X_train, y_train)

with verbosity=0 silencing the output and verbosity=1 producing the default output.

[davidsbatista]

seems OK to be, do you want to open a PR I can then merge it.