All service providers must implements this interface. This interfaces provides a method to initilize a provider.
Workflow frameworks loads the providers defined in workflow identity configuration file. The init methods is called to
initilize the provider.
Initlaizes the provider. This method is called to initialize a ServiceProvider defined in the cofiguration file with a map of properties defined in the file.
Each value defined in under tag <initializationParameter> in the identity confuration file is put in the map.