The Data Processing Framework isn't portable

[AakashSasikumar]

The serialized object of the DataProcessor instance requires its class to be imported when loading it.

For example, if an object of Examples/BasicProcessors/MultiVarProcessor was serialized and saved, when loading it into a new python session unless MultiVarProcessor is imported beforehand, the de-serialization throws an error.

Solutions:

1. (Dirty Solution): The raw class file can be saved along with the serialized data. When loading a model, we could load the class file first and then load the serialized data