AugLy v1.0.0

Changes

Text:

• Fixed return types in the doc strings so all text augmentations are consistent.
• Conserved whitespace through tokenization/detokenization for all text augmentations, so they are now consistent.

Image:

• Fixed bug with bounding boxes in rotate augmentation.

Overall:

• Split dependencies by modality so installation will be lighter-weight for most users. See issue #208 as well as the README of each modality for more details.
• Moved the test input/output data out of the main augly folder so it isn't packaged with the pypi package, to make installation lighter-weight.