Fixing staging buffers not getting deleted

remove vgcore

src/Engine/Graphics/Mesh.cpp

@@ -1,5 +1,6 @@
 #include "Mesh.h"
 #include "Graphics/Graphics.h"
+#include "Asset/AssetRegistry.h"
 
 using namespace Seele;
 
@@ -16,6 +17,7 @@ void Mesh::save(ArchiveBuffer& buffer) const
     Serialization::save(buffer, vertexData->getTypeName());
     Serialization::save(buffer, vertexCount);
     Serialization::save(buffer, meshlets);
+    Serialization::save(buffer, referencedMaterial->getAssetIdentifier());
     vertexData->serializeMesh(id, vertexCount, buffer);
 }
 
@@ -26,6 +28,9 @@ void Mesh::load(ArchiveBuffer& buffer)
     Serialization::load(buffer, vertexCount);
     vertexData = VertexData::findByTypeName(typeName);
     Serialization::load(buffer, meshlets);
+    std::string refId;
+    Serialization::load(buffer, refId);
+    referencedMaterial = AssetRegistry::findMaterialInstance(refId);
     id = vertexData->allocateVertexData(vertexCount);
     vertexData->loadMesh(id, meshlets);
     vertexData->deserializeMesh(id, buffer);