chore: use CommonTechset instead of TechsetDefinition

src/ObjCompiling/Game/T6/Techset/TechsetCompilerT6.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include "Asset/IAssetCreator.h"
+#include "SearchPath/ISearchPath.h"
+#include "Utils/MemoryManager.h"
+
+#include <memory>
+
+namespace techset
+{
+    std::unique_ptr<IAssetCreator> CreateCompilerT6(MemoryManager& memory, ISearchPath& searchPath);
+} // namespace techset