Auth delete should delete whitelisted IPs

[kirtangajjar]

When we delete auth on site with ee auth delete <sitename>, we also expect that the site's whitelisted IPs will also be deleted. They don't get removed and we have to remove it manually with ee auth delete <sitename> --ip.

Now we have to ensure that Whitelisted IPs also get deleted with ee auth delete <sitename> and we don't have to delete them separately with ee auth delete <sitename> --ip.

[abhijitrakas]

So expected behaviour is as follows.

(1) Delete auth for user 'joe'
ee auth delete example.com --user=joe

(2) Delete auth for ip '192.0.0.2'
ee auth delete example.com --ip=192.0.0.2

(3) Delete all white listed ips
ee auth delete example.com --ip

(4) Delete all user and white listed ips
ee auth delete example.com

@kirtangajjar please confirm.

[mbtamuli]

5. Delete all users
   ee auth delete example.com --user

This will also be required to have a uniform interface along with point number 3 above.