IXCobraMetricsThreadedPublisher.cpp uses a lambda to log instead of std::cerr

ws/ixcore/utils/IXCoreLogger.cpp

@@ -0,0 +1,14 @@
+#include "ixcore/utils/IXCoreLogger.h"
+
+
+namespace ix
+{
+// Default do nothing logger
+IXCoreLogger::LogFunc IXCoreLogger::_currentLogger = [](const char* msg){};
+
+void IXCoreLogger::Log(const char* msg)
+{
+    _currentLogger(msg);
+}
+
+} // ix