Call BRE Policy in Orchestration

Call BRE policy by following two way in orchestration:
1. Call Rules shape
2. Expression shape

Note:

The configuration for the Call Rules shape looks at the latest saved version when determining the types used. At run time, the latest deployed version will be used.
To call an older (specific) version from within an orchestration, the Business Rules Framework APIs is used, which can be called from within an expression.
The client applications can access only the deployed policies. If a client application invokes a policy that is not deployed, the rule engine generates a RuleEngineDeploymentNotDeployedException exception

Expression shape:

xmlDocument = IncomingXMLMessage.XMLCase;
typedXmlDocument = new Microsoft.RuleEngine.TypedXmlDocument("LoanApp",xmlDocument);
policy = new Microsoft.RuleEngine.Policy("LoanProcessing");
policy.Execute(typedXmlDocument);
OutgoingXMLMessage.XMLCase = xmlDocument;
policy.Dispose();

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