The default save location is now none so if keys are not specified the
corresponding checkpoint type is not saved.
Models and checkpoints are now both saved with version number and the
config used to create them in order to simplify loading.
Documentation was fixed to be in line with current usage.
* Added autoresume after crash functionality to the trackers
* Updated documentation
* Clarified what goes in the autorestart object
* Fixed style issues
Unraveled conditional block
Chnaged to using helper function to get step count
* Overhauled the tracker system
Separated the logging and saving capabilities
Changed creation to be consistent and initializing behavior to be defined by a class initializer instead of in the training script
Added class separation between different types of loaders and savers to make the system more verbose
* Changed the saver system to only save the checkpoint once
* Added better error handling for saving checkpoints
* Fixed an error where wandb would error when passed arbitrary kwargs
* Fixed variable naming issues for improved saver
Added more logging during long pauses
* Fixed which methods need to be dummy to immediatly return
Added the ability to set whether you find unused parameters
* Added more logging for when a wandb loader fails
