Airavata DataLake Data model

[Aditya Rudrawar]

I have added the diagram of the data model.
I will update the diagram as I work more on it.

https://docs.google.com/document/d/1edvkXGObYfAb2tjTljnuIpqvU17OJLV54raQYp41u0w/edit?usp=sharing

Thanks,
Aditya Arun Rudrawar.