chore: use CommonTechset instead of TechsetDefinition

src/ObjCompiling/Techset/CommonTechniqueLoader.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include "Asset/AssetCreationContext.h"
+#include "Techset/CommonTechnique.h"
+
+#include <memory>
+
+namespace techset
+{
+    std::unique_ptr<CommonTechnique>
+        LoadCommonTechnique(const AssetCreationContext& context, const CommonCodeSourceInfos& codeSourceInfos, const CommonStreamRoutingInfos& routingInfos);
+} // namespace techset