GUI-1331 Allow custom protocols to be entered for VPC security group rules

https://eucalyptus.atlassian.net/browse/GUI-1331
@kyolee310:  We don't need to use escape_json here, since the INTERNET_PROTOCOL_NUMBERS list is console-generated.  And since we don't need to escape the JSON here, we don't need to pull in the EucaConsoleUtils Angular service in the security group rules editor, so let's remove that to avoid unnecessary HTTP requests on pages that pull in the security rules editor.