[model:citizen] - Add netidEnable attribute. Issue #295
[settings:identity] - Remove submitting form logic and add response error handling. Issue #295
[settings] - Add identity post route to handle netid identity creation. Issue #295
[signup] - Remove netid leftovers from signup component. Issue #295
[citizen] - Add netidEnabled attribute exposure to api request on /citizen/me. Issue #295
[settings-identity] - Add toggling according to netidEnabled citizen attribute. Issue #295