et a ClientAuthContext instance from this ClientAuthConfig.

 <p>
 The implementation of this method returns a ClientAuthContext instance that encapsulates the ClientAuthModules used
 to secure and validate requests/responses associated with the given <i>authContextID</i>.

 <p>
 Specifically, this method accesses this ClientAuthConfig object with the argument <i>authContextID</i> to determine
 the ClientAuthModules that are to be encapsulated in the returned ClientAuthContext instance.
 
 <P>
 The ClientAu