graphics: avoid full-cache scans when deleting stencil associations

Co-authored-by: overlordxrz-source <overlordxrz-source@users.noreply.github.com>
Co-authored-by: TheCruZ <thecruzwtf@gmail.com>

src/graphics/host_gpu/renderer/image/image.h

@@ -149,6 +149,8 @@ public:
 	uint64_t         track_addr     = 0;
 	uint64_t         track_addr_end = 0;
 	ImageId          depth_id {};
+	// Stencil associations that refer to this depth image.
+	std::vector<ImageId> stencil_ids;
 	// The current stencil plane's mapping into the depth image, also retained by its association.
 	ImageSubresourceRange stencil_subresources;
 	uint64_t         tick_accessed_last = 0;