QPR-11831 add sensitivityStream and covariance data from xml strings

Author: damienbarker

OREAnalytics-SWIG/SWIG/orea_app.i

@@ -133,10 +133,8 @@ public:
     void setVarMethod(const std::string& s);
     void setMcVarSamples(Size s);
     void setMcVarSeed(long l);
-    // TODO: API for setting covariance data 
-    // const std::map<std::pair<RiskFactorKey, RiskFactorKey>, Real>& covarianceData();
-    // TODO: API for setting a sensitivity stream
-    // const boost::shared_ptr<SensitivityStream>& sensitivityStream();
+    void setCovarianceDataFromBuffer(const std::string& s);
+    void setSensitivityStreamFromBuffer(const std::string& buffer);
     // Setters for exposure simulation
     void setSimmVersion(const std::string& s);
     void setCrifFromBuffer(const std::string& csvBuffer,