missing identifiers

Pytorch Lightning Integration (#569)
* Added minimal code to integrate Pytorch Lightning into training.py
* Added autocast support, removed intra epoch checkpointing for simplicity, integrated checkpoint support, fixed validation support
* Fixed multi-gpu support
* Fixed smoke test, pretrained tests will be broken till new model release
Added trains viz logging
Precision
* Updated README, fixed server class, updated k8s config file, added fix for adam Trains support, removed autocast since this is handled via lightning
* Swapped to using tqdm write for readability when checkpointing, added an4 config
* Added base script for each dataset, updated default params
* Swapped to using native CTC, updated common voice script, removed incorrect lightning version
* Updated cv params and output manifest location, set default epochs to the epochs used for previous release
* Disable trains logger for now, simplified checkpointing logic for new release
* Added new metrics class, removed save_output/verbose for now, using new ModelCheckpoint class for model saving
* multiprocess duration collection for speed, allow loading from file path, refactor path name and test
* Swap to latest release candidate, fixed flag reference
* Format smoke test, update path to best save k model
* Update to latest RC
* Removed trains logging, rely on PL tensorboard. swap to saving json object for manifest to modify root path
* Ensure abs path for manifest root path
* Use absolute paths for manifest
* Update requirements, abstract all PL trainer arguments
* Enable checkpoint callback
* Enable checkpoint callback, add verbosity
* Add sharded as a dependency for better memory use
* Set num workers, add spec augment
* Update deepspeech_pytorch/data/utils.py
Co-authored-by: Anas Abou Allaban <aabouallaban@protonmail.com>
* Specify blank index explicitly
* Add blank index to ctc loss
* Fix CI
* Fix Syntax Warning
* Fix install requirements
* Use torchaudio (#607)
* Use torchaudio
* Add torchaudio to reqs
* Fixes for testing, update AN4 config, update dockerfile base image
* Add noninteractive to remove stalling
* revert
* Update API
Co-authored-by: Sean Narenthiran <sean.narenthiran@digitalreasoning.com>
Co-authored-by: Anas Abou Allaban <aabouallaban@protonmail.com>
Co-authored-by: Anas Abou Allaban <aabouallaban@pm.me>

Remove hydra-core rc, use latest stable version

Merge pull request #458 from SeanNaren/feature/V2
Feature/v2

Fix offsets flag

Merge pull request #216 from taras-sereda/master
simplified batch softmax

Merge pull request #141 from SeanNaren/fix-inference
Refactor of testing/prediction, added progress