Add **Assets profiler** to Editor

Source/Engine/Content/Asset.cpp

@@ -313,6 +313,17 @@ bool Asset::ShouldDeleteFileOnUnload() const
 
 #endif
 
+uint64 Asset::GetMemoryUsage() const
+{
+    uint64 result = sizeof(Asset);
+    Locker.Lock();
+    if (_loadingTask)
+        result += sizeof(ContentLoadTask);
+    result += (OnLoaded.Capacity() + OnReloading.Capacity() + OnUnloaded.Capacity()) * sizeof(EventType::FunctionType);
+    Locker.Unlock();
+    return result;
+}
+
 void Asset::Reload()
 {
     // Virtual assets are memory-only so reloading them makes no sense

Source/Engine/Content/Asset.h

@@ -128,14 +128,17 @@ public:
     }
 
 #if USE_EDITOR
-
     /// <summary>
     /// Determines whether this asset was marked to be deleted on unload.
     /// </summary>
     API_PROPERTY() bool ShouldDeleteFileOnUnload() const;
-
 #endif
 
+    /// <summary>
+    /// Gets amount of CPU memory used by this resource (in bytes). It's a rough estimation. Memory may be fragmented, compressed or sub-allocated so the actual memory pressure from this resource may vary.
+    /// </summary>
+    API_PROPERTY() virtual uint64 GetMemoryUsage() const;
+
 public:
     /// <summary>
     /// Reloads the asset.
@@ -160,7 +163,6 @@ public:
     virtual void CancelStreaming();
 
 #if USE_EDITOR
-
     /// <summary>
     /// Gets the asset references. Supported only in Editor.
     /// </summary>
@@ -184,7 +186,6 @@ public:
     /// </remarks>
     /// <returns>The collection of the asset ids referenced by this asset.</returns>
     API_FUNCTION() Array<Guid, HeapAllocation> GetReferences() const;
-
 #endif
 
     /// <summary>