Clean config object that can be passed to Autolabel instead of a dictionary

[rajasbansal]

Is your feature request related to a problem? Please describe. Currently we pass in configs as dictionary or path to json objects. We should instead be passing in config objects which have getter and setter functions which make altering the configs easier and more readable.

Describe the solution you'd like Exposing the config class to the user more transparently. Running validation on config class based on passed in parameters.

[P2]

• Ability to share these configs