[Issue-176] Add UI for publish_member_name_consent

[reginafcompton]

Description

This PR adds a UI for the new Member model field: publish_member_name_consent. It implements the following:

1. exposes the field in the admin dashboard (so the AHS newsletter editor can use it)
2. adds the field to the member-edit form
3. exposes the value of publish_member_name_consent (in a nice way) on the profile page

N.b., The commit history for this PR is a little messy, since I had to revise my initial implementation after getting feedback from AHS stakeholders.

Manual testing

• [ ] create a super user

pipenv run python manage.py createsuperuser

• [ ] use the admin view to assign yourself a "circle" tier

  

• [ ] update your profile; select some value for the new "...do you consent to publishing your name...?" dropdown

• [ ] see your updated profile page

A non-circle user should NOT see the new field in the update form, nor should she see additional data on her profile page.

[ecedmondson]

Thanks for the UI Screenshots. Going to run locally.

[ecedmondson]

Sorry I didn't assign this back to you until just now, @reginafcompton . I thought I had...but I noticed you merged the other and not this one.

Oh and, surprise, happy new year: merge conflicts.

[reginafcompton]

Closes issue #176