ey init

Generate ey.yml with smart defaults. Accept options to setup the file correctly.

Features:
- [x] Generate ey.yml file from template.
- [x] Accept major settings on the command line and generate the appropriate settings.
- [ ] Remove interactive settings from ey deploy and rely completely on ey.yml and ey init.
- [ ] Refer to ey init when no ey.yml file is found during deploy.
- [ ] Possibly error on deploy if no ey.yml is found.
- [ ] Always error on deploy if ey.yml is not committed. (git ls)
- [ ] Load existing ey.yml options and write them into the generated file.
- [ ] Ensure deploy key access.
- [ ] Print deploy key if access does not work. (copy to clipboard with pbcopy? What about linux/windows?)
- [ ] Create the application if it doesn't exist?