Rename ZoneLoader and ZoneWriter components to ZoneLoading and ZoneWriting to make a difference between the executive class and the component class

src/ZoneLoading/Loading/ILoadingStep.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include "Loading/ZoneLoader.h"
+#include "ILoadingStream.h"
+
+class ZoneLoader;
+
+class ILoadingStep
+{
+public:
+    virtual ~ILoadingStep() = default;
+
+    virtual void PerformStep(ZoneLoader* zoneLoader, ILoadingStream* stream) = 0;
+};