Initial implementation of projects

[bennybp]

Description

This PR is the initial implementation of projects. It should basically be functional, but under-documented and still "beta" quality. I would like to just get this in for the next release for some testing on production servers.

Documentation is on the way, but quick start:

proj = client.add_project("Project Name") # see also get_project, get_project_by_id, list_projects
ds = proj.add_dataset(...)                # similar args to client.add_dataset

proj.dataset_metadata will give info about datasets that are part of the project

You can link existing datasets to a project with proj.link_dataset(ds_id)

Status

• Code base linted
• Ready to go