Add operator << to SkillID

source/RobotAPI/libraries/skills/provider/SkillID.cpp

@@ -37,4 +37,9 @@ namespace armarx
             return (prefix.empty() ? std::string("") : (prefix + PREFIX_SEPARATOR)) + providerName + NAME_SEPARATOR + skillName;
         }
     }
+
+    std::ostream& skills::operator<<(std::ostream& os, const SkillID& id)
+    {
+        return os << "'" << id.toString() << "'";
+    }
 }

source/RobotAPI/libraries/skills/provider/SkillID.h

@@ -32,5 +32,7 @@ namespace armarx
             provider::dto::SkillID toIce() const;
             std::string toString(const std::string& prefix = "") const;
         };
+
+        std::ostream& operator<<(std::ostream& os, const SkillID& id);
     }
 }