verbose mode

[YitzhakSp]

Hi. It would be nice in svd.fit() to have a verbose mode, where train- and validation error would be printed in every iteration. Currently only validation error is printed and even that only in the case, when early_stop==True.

[gbolmier]

Hey @YitzhakSp! Sure, a verbose parameter with silent, train and all modes with if statements will do the trick. I am about to house move and don't have the time to work on it right now. Feel free to open a pull request :)