Improvements in SA to COCO annotation format export

Improve annotation group handling in SA to COCO annotation format export

Add Neural Network functionality support

Using the SDK you can now:

• Train neural networks superannotate.run_training
• Run predictions superannotate.run_prediction
• Run segmentations superannotate.run_segmentation

and a few more NN related functionality is added.

Fix backslash containing strings in requests

v3.1.3

Fix backslash containing requests

Fix attribute ID generation issue for non-existing attribute names

v3.1.2

Fix non-existing attributes error

Fix attribute ID generation issue

v3.1.1

Fix attribute ID issue

Require width, height, name in annotation JSONs

v3.1.0

Version bump

Improve documentation integration with Readthedocs

v3.0.2

Remove readthedocs extra requirement

Fix docs on annotation format conversion

v3.0.1

Remove COCO requirements

Annotation JSON format change

v3.0.0

Update version.py

Annotation JSON format change

v3.0.0b20

Version bump