Refactor and enhance codebase for maintainability

Refactored and reorganized the codebase to improve readability, performance, and maintainability. Introduced new interfaces and structs for better resource management, updated project configuration files, and refactored shader and graphics pipeline management. Improved error handling, code formatting, and removed unused code and namespaces. Updated DLL references and method signatures for consistency and maintainability.

Ghost.Graphics/RHI/ICommandBuffer.cs

@@ -131,51 +131,6 @@ public interface ICommandBuffer : IDisposable
     public void CopyBuffer(Handle<GraphicsBuffer> dest, Handle<GraphicsBuffer> src, ulong destOffset = 0, ulong srcOffset = 0, ulong numBytes = 0);
 }
 
-/// <summary>
-/// Viewport description
-/// </summary>
-public struct ViewportDesc
-{
-    public float x;
-    public float y;
-    public float width;
-    public float height;
-    public float minDepth;
-    public float maxDepth;
-}
-
-/// <summary>
-/// Rectangle description
-/// </summary>
-public struct RectDesc
-{
-    public uint left;
-    public uint top;
-    public uint right;
-    public uint bottom;
-}
-
-/// <summary>
-/// Resource states
-/// </summary>
-[Flags]
-public enum ResourceState
-{
-    Common = 0,
-    VertexAndConstantBuffer = 1 << 0,
-    IndexBuffer = 1 << 1,
-    RenderTarget = 1 << 2,
-    UnorderedAccess = 1 << 3,
-    DepthWrite = 1 << 4,
-    DepthRead = 1 << 5,
-    PixelShaderResource = 1 << 6,
-    CopyDest = 1 << 7,
-    CopySource = 1 << 8,
-    GenericRead = 1 << 9,
-    IndirectArgument = 1 << 10,
-    Present = 0,
-}
-
 internal static class ResourceStateExtensions
 {
     public static D3D12_RESOURCE_STATES ToD3D12States(this ResourceState state)
@@ -196,11 +151,3 @@ internal static class ResourceStateExtensions
         };
     }
 }
-
-
-public struct SubResourceData
-{
-    public unsafe void* pData;
-    public nint rowPitch;
-    public nint slicePitch;
-}