- Update to `tensorflow.keras` (stand-alone keras will be deprecated)
- Updates to the `deepposekit.io` API to abstract data generators with `BaseGenerator`, and added `io.utils` with functions for initializing and merging datasets to resolve 3
- Improved example notebooks with more documentation to resolve 10 7
- Added more sanity checks to resolve 8 7
- Refactored `StackedDenseNet` to simplify and improve performance.
- Updated models including a pretrained `StackedDenseNet` and `DeepLabCut` with multiple ImageNet pretrained backbone models for transfer learning (ResNets, DenseNets, MobileNetsV2)
- Load DeepLabCut (http://deeplabcut.org) data with `io.DLCDataGenerator` to resolve 1