Render graph: native pass merging & heap-based aliasing

Major architecture upgrade:
- Add native render pass merging (hardware pass grouping, load/store op inference)
- Implement heap-based aliasing for textures & buffers (D3D12-style)
- Unify resource model: buffers and textures in one registry
- Extend builder API for buffer creation/usage, access flags, hints
- Improve barrier/state tracking (buffer hints, indirect argument state)
- Update caching, hashing, and debug output for new model
- Add enums/structs: AttachmentLoadOp, StoreOp, BufferHint, etc.
- D3D12 backend: support named resources, temp upload buffers, correct heap usage
- Update docs, benchmarks, and project files for new features

Brings render graph closer to AAA engine standards, enabling efficient memory usage, lower driver overhead, and a more flexible API.

Ghost.Graphics.Test/Windows/GraphicsTestWindow.xaml

@@ -34,14 +34,5 @@
             Height="4"
             HorizontalAlignment="Stretch"
             Background="{ThemeResource SystemControlBackgroundBaseLowBrush}" />
-
-        <!--  Debug Console  -->
-        <Border
-            Grid.Row="2"
-            Background="{ThemeResource SystemControlBackgroundAltHighBrush}"
-            BorderBrush="{ThemeResource SystemControlForegroundBaseLowBrush}"
-            BorderThickness="0,1,0,0">
-            <controls:DebugConsole x:Name="DebugConsole" />
-        </Border>
     </Grid>
 </Window>