Feature Request: Progress bar during augmentation

[bauersimon]

Would be great to have an (optiona) progress bar during augmentation. Currently augmenting ~200k text samples with ContextualWordEmbsAug and have no clue how long it's gonna take.

I know that I could basically "build" a progress bar around the augmentation. But what good is the automatic batching and processing with cuda if I have to do all of it outside just to pass the batches through tqdm.