thread-safe sglog initialization

Source/SenseGloveLog/Private/SGLog/SGLog.cpp

@@ -34,8 +34,10 @@
 
 
 #include "SGLog/SGLog.h"
+
 #include "Containers/Map.h"
 #include "Logging/LogMacros.h"
+#include "Templates/Atomic.h"
 
 DEFINE_LOG_CATEGORY(LogEditor)
 DEFINE_LOG_CATEGORY(LogGeneric)
@@ -60,7 +62,7 @@ struct FSGLogCore::FStaticImpl
 
     TMap<FSGLogCore::EVerbosity, VerbosityMapper> VerbosityMap;
 
-    bool bInitialized;
+    TAtomic<bool> bInitialized;
 
     /************************
      * Constructor / Destructor