Add Dockerfile with integrated dataGenerator

[dagyu]

Hi,
I just add a Dockerfile to simplify the usage of dataGenerator "library".
Furthermore I advise you to use the fantastic feature provided by Github Packages that allows you to upload a docker file and use Github as a registry, so to start with our exercise we have just to run these commands:

#only the first time in order to download the image
docker pull docker.pkg.github.com/brcondor/Architectures_For_Big_Data/IMAGE_NAME:latest
docker run -p 8888:8888 IMAGE_NAME

Here there is a guide that allows you to upload a docker image in github.

Caveat (Login with docker)
The first time everyone (who push and who pull) should be logged into github package that is a pretty simple task, in a nutshell

1. First you have to access in this page to obtain read:packages (and write:packages only for pushing permission)
2. Save this token in ~/TOKEN.txt (or anywhere you want)
3. And then login running this shell command $ cat ~/TOKEN.txt | docker login https://docker.pkg.github.com -u USERNAME --password-stdin

[dagyu]

With the committ 16bf4f3 to enhance usability I just add dataGenerator as library. In this way attaching a volume become very simple, you can just run something like this:

docker run -d -p 8888:8888 -v /path/on/my/filesystem:/home/jovyan/work/ IMAGE_NAME

EDIT
If you run the command below you have to add read and write permission to the others, briefly:

chmod o+w -R  /path/on/my/filesystem