Missing fields for user

There are some fields shown in the design to create a user "profile" (complete your profile after registration) that are currently not supported by the data model. See https://app.zeplin.io/project/5ebb0c7bc826984e0abb929b/screen/5ebf49b28518062fa64e2232

These should probably also be added to the data model & API to create user & update user.

The fields that we discussed for legal, shown as these 2 required checkboxes:
- By signing up, I agree to the Privacy Policy
- By signing up, I agree to the Terms and Conditions
These could be saved with a timestamp or version instead of just a boolean to add some useful metadata.

The other 2 fields that are missing are also 2 check boxes and might need to be added to the data model:
- I am travelling
- Don't show my address