Constructs AmazonRDSClient with AWS Credentials and an
            AmazonRDSClient Configuration object.
            
 Declaration Syntax
 Declaration Syntax| C# | 
public AmazonRDSClient( AWSCredentials credentials, AmazonRDSConfig clientConfig )
 Parameters
 Parameters- credentials (AWSCredentials)
- AWS Credentials
- clientConfig (AmazonRDSConfig)
- The AmazonRDSClient Configuration Object