Update user endpoint

[petterroea]

PATCH /user/:uuid

Only admin or the user in question can use it.

You should be able to send in only some values, and still modify the user. Like here: https://github.com/phoenixlan/phoenixapi-v1/blob/master/phoenixRest/views/agenda/instance.py#L56

Fields we want to allow modification of:

• firstname
• lastname
• birthdate
• gender
• phone
• guardian_phone
• address
• postal_code

We should validate these fields just like when the account is first created, so see here for help on validation: https://github.com/phoenixlan/phoenixapi-v1/blob/master/phoenixRest/views/user/__init__.py#L97

[bernes1]

hmm lets dig into this