Allow users to add more profile info

Users should be able to add workplace
Users should be able to add position title
Users should be able to add title
Users should be able to add contact details

Start by locating the existing user profile entry points and tracing how profile data is displayed, edited, and stored. Clarify the intended meaning and format of workplace, position title, title, and contact details; the work is done when users can add and retrieve each agreed field.

Written by the indexing model from the issue text.