Add dictionary info for expandAlias(es) functions

Author: aphecetche

Detectors/DCS/src/DetectorsDCSLinkDef.h

@@ -19,5 +19,7 @@
 #pragma link C++ struct o2::dcs::DataPointValue + ;
 #pragma link C++ class o2::dcs::DCSProcessor + ;
 #pragma link C++ class std::unordered_map < o2::dcs::DataPointIdentifier, o2::dcs::DataPointValue> + ;
+#pragma link C++ function o2::dcs::expandAlias(const std::string&);
+#pragma link C++ function o2::dcs::expandAliases(const std::vector<std::string>&);
 
 #endif