add profile endpoints

[j-chad]

Is your feature request related to a problem? Please describe. as a user I want to be able to change my settings so that the site will reflect my preferences

Describe the solution you'd like We should create 2 new endpoints:

• GET /api/v1/users/current
  • should return the current user
  • will have the same data as GET /api/v1/users/:id but may be extended further later
• PUT /api/v1/users/current
  • updates user information
  • user should be able to update:
    • username
    • profile picture
    • email
    • password

extend both GET /api/v1/users/current and GET /api/v1/users/:id to also return profile picture

profile picture should be uploaded to local filesystem and should be served when requested. https://stackoverflow.com/questions/29920824/how-to-serve-images-in-nodejs-express

Checklist:

• [x] I have double-checked that the issue does not currently exist.
• [x] I have added the appropriate labels (e.g. bug, enhancement, new feature).
• [x] I have added the Team 4 project