NewConfig initializes a new Config structure based on the yaml data in the given byte stream.

CLI : The command line interface struct.

Config contains the parsed YAML data from the systemlink.yaml configuration file.

ValueConverter provides functions to convert between input data of the command line and the data types in the model.

Parser interface which turns the given byte stream into a structured service definition model with all declared operations.

ServiceCaller interface abstracts calling the external services.