Verify the credentials provided in the properties
Your security manager needs to validate credentials coming from all communication channels.
If you use AuthInitialize to generate your client/peer credentials, then the input of this
method is the output of your AuthInitialize.getCredentials method. But remember that this
method will also need to validate credentials coming from gfsh/jmx/rest client, the framework
is putting the username/password under security-username and security-password keys in the
property, so your securityManager implementation needs to validate these kind of properties