Support dataset formats

[yasakova-anastasia]

• [x] OpenImages (#274)
• [x] VoTT (#573)
• [x] CelebA (#484)
• [x] SYNTHIA (#532)
• [ ] Veri776 (re-indefication)
• [x] CIFAR (#225)
• [x] MNIST (#234)
• [x] Fashion-MNIST (#234)
• [x] Kinetics-400/600 (action recognition) (#706)
• [ ] MS_ASL
• [x] ADE20K (segmentation, image processing)
• [x] CityScapes (#249)
• [x] COCO (segmentation) (#210)
• [x] Mapilary
• [ ] AFLW2000-3D (landmarks)
• [ ] WFLW (landmarks)
• [ ] Kondate, Nakayosi, SCUT_EPT (character recognition)
• [ ] LPR (license plate recognition)
• [ ] LibriSpeech (character recognition)
• [ ] IM2LATEX (character recognition)
• [ ] CMU Panoptic keypoints (pose estimation 3d)
• [x] MPII (pose estimation) (#580)
• [ ] ReDWeb (depth estimation)
• [ ] NYU V2 (depth estimation)
• [ ] DNA sequence
• [x] MARS (re-id) (#586)
• [ ] Criteo
• [x] BraTS (brain tumor segmentation) (#628)
• [ ] WMT (machine translation)
• [ ] SQuAD (question answering)
• [ ] XNLI in common and tensorflow records format (text classification)
• [ ] MNLI (text classification)
• [ ] MRPC (text classification)
• [ ] CoLA (text classification)
• [ ] IMDB (text classification)
• [ ] Detection OpenCV
• [ ] Movie Lens (hit ratio annotation)
• [ ] Google AVA action detection/kinetics (https://research.google.com/ava/download.html)
• [ ] PolyYOLO (https://gitlab.com/irafm-ai/poly-yolo/-/tree/master)
• [x] Common semantic segmentation (#685)
• [x] Common super resolution (#700)

[nmanovic]

@yasakova-anastasia , could you please update the list and status of datasets?