TextDataRecognitionGenerator as a python module

[Belval]

The preferred usage had always been through the CLI. Unfortunately, this approach is not frictionless when used in a real machine learning pipeline that might include data augmentations.

The v1 candidate would be giving access to the data generators classes and have an easy to use interface that can be used as seamlessly as the CLI.

A package would be uploaded to pypi for ease of use.