Use exact value comparison in caching related functions

(cherry picked from commit 9d7c6b26422e127719836944d8d473910190e7d4)

Source/Engine/ContentImporters/CreateMaterial.cpp

@@ -20,7 +20,7 @@ namespace
     template<typename T>
     ShaderGraphNode<>* AddValueNode(MaterialLayer* layer, const float& value, const float& defaultValue)
     {
-        if (Math::NearEqual(value, defaultValue))
+        if (value == defaultValue)
             return nullptr;
         auto& node = layer->Graph.Nodes.AddOne();
         node.ID = layer->Graph.Nodes.Count();