Refactor folder structure

src/Runtime/Ghost.Graphics/Core/ResourceHandle.cs

@@ -0,0 +1,32 @@
+using Ghost.Core;
+
+namespace Ghost.Graphics.Core;
+
+public readonly struct GPUResource;
+public readonly struct Texture;
+public readonly struct GraphicsBuffer;
+
+public readonly struct Sampler;
+
+public static class ResourceHandleExtensions
+{
+    public static Handle<GPUResource> AsResource(this Handle<Texture> texture)
+    {
+        return new Handle<GPUResource>(texture.ID, texture.Generation);
+    }
+
+    public static Handle<GPUResource> AsResource(this Handle<GraphicsBuffer> buffer)
+    {
+        return new Handle<GPUResource>(buffer.ID, buffer.Generation);
+    }
+
+    internal static Handle<Texture> AsTexture(this Handle<GPUResource> resource)
+    {
+        return new Handle<Texture>(resource.ID, resource.Generation);
+    }
+
+    internal static Handle<GraphicsBuffer> AsGraphicsBuffer(this Handle<GPUResource> resource)
+    {
+        return new Handle<GraphicsBuffer>(resource.ID, resource.Generation);
+    }
+}