Add render graph proof of concept and refactor graphics

Implemented a transient render graph system as a proof of concept, including resource aliasing, pass culling, and typed pass data. Added new project `Ghost.RenderGraph.Concept` targeting `.NET 10.0`.

Refactored graphics-related components:
- Simplified resource state transitions in `RenderingContext`.
- Improved resize handling in `GraphicsTestWindow`.
- Updated `D3D12GraphicsEngine` to streamline frame rendering.
- Enhanced `D3D12ResourceDatabase` and `D3D12SwapChain` for better resource management.

Added detailed documentation:
- `ALIASING.md` explains resource aliasing techniques.
- `API_DESIGN.md` outlines the render graph API design.

Updated solution to include the new render graph project.

Ghost.Graphics/D3D12/D3D12CommandQueue.cs

@@ -132,7 +132,7 @@ internal unsafe class D3D12CommandQueue : ICommandQueue
         ObjectDisposedException.ThrowIf(_disposed, this);
 
         _fenceValue = value;
-        _commandQueue.Get()->Signal((ID3D12Fence*)_fence.Get(), _fenceValue);
+        ThrowIfFailed(_commandQueue.Get()->Signal((ID3D12Fence*)_fence.Get(), _fenceValue));
         return _fenceValue;
     }