addAuthority(fullAuthorityName) adds an existing
authority as a child of this group.
Parameters
- fullAuthorityName
- A string representing the full name of the authority.
Example
var shortName = "MY_SUB_GROUP";
var group = groups.getGroup(shortName);
// now add authority to this group
var fullName = "GROUP_MY_TEST_GROUP";
group.addAuthority(fullName);