feat(avatars): profile images

Getting there! Feel free to start looking @shane-tomlinson @pdehaan.

Still needs:
- [ ] profile-server client
- [ ] progress indicator screen
- [ ] unit tests for camera view
- [ ] unit tests for cropper widget
- [x] circular overlay on cropper
- [ ] functional tests
Our current prod resources weight 427kb, using only the subset of resources that we need are a huge win otherwise we are looking at 650kb of resources.

Better yet, could we lazy load this?