Mentee Profile Model: Update

[justinhernandez]

When a Mentee signs up on our platform, let's capture these additional data points:

• [ ] areas of guidance (select many)
  • Portfolio / Code Reviews
  • Job Search and Interviews
  • Industry Trends, Skills, Technologies
  • Leadership, Management
  • Business, Entrepreneurship
  • Career Growth
• [x] goals (text field)

Implementation: Mentee Profile Class

References Mentee:Signup Issue

[justinhernandez]

@jesseklein406 you may want to check out the way @dsnowb set up the multiselect field in the Mentor profile

https://github.com/PuPy-Python/mentorship-app/pull/59