* Refactor 'inspec init profile' into a reusable component.
base_cli.rb had several methods used internally, these are exposed so
lib/bundles/inspec-init/profile.rb can act as a library for anything
that needs to create new Inspec profiles programatically
* Move output methods to be public instance methods; and make Init::Profile into a working renderer. Functional tests pass but could use some refactoring to be easier to use.
* Refactor, renaming vars to be clearer
* Move puts and exit calls into basecli
* Add comment about simplified ERB rendering in ruby 2.5.0+
Signed-off-by: Clinton Wolfe <clintoncwolfe@gmail.com>