Added automatic OHLCV fetcher for crypto exchanges

[AlconDivino]

Added crypto_data_loader.py
New Feature: fetch crypto data directly from exchange

[bitnom]

Added crypto_data_loader.py
New Feature: fetch crypto data directly from exchange

I already did that too lol. Check to see which one is better.

[bitnom]

Added crypto_data_loader.py
New Feature: fetch crypto data directly from exchange

Mine is slightly better. Please let mine get pulled this time so I can get on the contrib. It's this one #11 for this file: https://github.com/TensorTom/Stock-Prediction-Models/blob/master/dataset/downloader_crypto.py

[AlconDivino]

Yeah just added the one directly to my evolution_bayesian.py file. My crypto loader passes the data as pandas.Dataframe directly to the script and not to a CSV file. Also my file is based on yours :D

[bitnom]

Yeah just added the one directly to my evolution_bayesian.py file. My crypto loader passes the data as pandas.Dataframe directly to the script and not to a CSV file. Also my file is based on yours :D

That's good. Just add an option so user can switch between your loader and flat csv so that my loader still works. It's good to have a CLI tool for it. Mine is an argv script.

[AlconDivino]

Yeah they just have to comment out 1 line and recommend the original one. No worries there

[bitnom]

Yeah they just have to comment out 1 line and recommend the original one. No worries there

Check my latest commits on my fork. Worked that out and also improved the structure.