Organization: enable users to create them

[ybakos]

Per NW 1/26/24.

Perhaps we can enhance the affiliations UX when creating a project.
Also note that users have an "affiliation" attribute.... does this need to be replaced with an Organization relationship?

[ybakos]

Via NW and Symbiotic 2/6/24:

It would also be nice to add an affiliated partner that hasn't added a profile yet. I imagine it's not as ideal, they wouldn't have their logo. But at least they are mentioned.