[WIP] Making project compilable with clang

CMakeLists.txt

Editor/EditorEntryPoint.cpp

Engine/CMake/ExternalPackages.cmake

Engine/Core/Ecs/DenseTable.cpp

Engine/Core/Ecs/EcsId.h

Engine/Core/Ecs/Observer.h

Engine/Core/Ecs/System.h

Engine/Core/Ecs/World.h

Engine/Core/Ecs/WorldImpl.cpp

Engine/Core/Ecs/WorldImpl.h

Engine/Core/Gpu/GpuPso.h

Engine/Core/Gpu/vulkan/VulkanPso.cpp

Engine/Core/Graph/Graph.cpp

Engine/Core/Graph/Graph.h

Engine/Core/Graph/GraphBuilder.cpp

Engine/Core/Graph/GraphBuilder.h

Engine/Core/Graph/NodeBuilder.cpp

Engine/Core/Hub/Hub.cpp

Engine/Core/PluginManager/CMakeLists.txt

Engine/Core/PluginManager/PluginInterface.h