[Refactor] Modularize Ratspub/Nlp #2
Description
Description
Right now, if you visit https://github.com/chen42/RatsPub/blob/master/nlp/RatsPub_CNN.py and https://github.com/chen42/RatsPub/blob/master/nlp/RatsPub_CNN_predict.py, you'll notice that there are redundant methods and there are methods that are side-effectful. I propose we modularize these steps into re-usable libraries and add documentation of how to use it. While at it, we could also pep-8 the files.