feat: CCIE-180 allow running 'fogg init' with flags instead of realtime user prompts

[hspitzley-czi]

Summary

A description of changes or issues addressed by this PR. Provide links to relevant PRs if any.

Test Plan

Say unittests, or list out steps to verify changes.

References

(Optional) Additional links to provide more context.

[jakeyheath]

after 3 output vars, I usually revert to making a struct because I forget the ordering of the variables, especially when they are all of the same type. It might make it a little cleaner to do something like this:

Suggested change

	func userPrompt(cmd *cobra.Command) (string, string, string, string, string, string, error) {
	type FoggProject struct {
	Project, Region, Bucket, Table, Profile, Owner string
	}
	func userPrompt(cmd *cobra.Command) (*FoggProject, error) {

and then in error cases you'd do something like

if err != nil {
  return nil, errors.Wrap(err, "a summary of the error")
}

[jakeyheath]

minor go conventions