arch: plugins: move plugins to DFFML org

[yashlamba]

Some points discussed on 2021-05-13

Moving Forward:

1. Make plugins list for 1st, 2nd and 3rd party plugins.
2. Add them to a JSON file in dffml/dffml/plugins.json
   • Plugins by levels.
   • Link to repo.
   • Tutorials linked/fetch from the tutorials.
3. Modify scripts in DFFML.
4. Move scikit-learn to dffml-org (1st Party Plugin):
   • Write Generic CI for plugins.
     • Run tests on different OS.
     • lint.
     • Tutorials test.
     • Check collision/compatibility with 1st parties: This should be done in the core repo
       since it isn't something that breaks the plugin but the DFFML release process.
     • docstring build + tests.
5. CI changes, DFFML:
   • Build docs for main repo.
   • Check and build docs for plugins (on commit not PR)
   • Tutorials test.
   • Compatibility check:
     • Run dffml service dev install / dffml install -level 1
       • If it works: Can be released.
6. Difficult part - Tutorials!:
   • Simple way out is to list the dependencies for each tutorial and check them on there respective plugin repo.
   • Generate a tag from that workflow and put it on top of the tutorial.
   • pip install for each tutorial on top

Need to figure out:

• On commit to dffml main repo: How to check whether tutorial would pass with current plugins. Plugins would essentially be green until they merge a commit after dffml.

Points to discuss:

• Someway to build the docs in plugins and fetch in main repo when built.