rr: Cyberpunk's extra inputs (SSS guide, colour before particles) and hardware depth

- GameFrameR/RFrameImages: DLSSD.ScreenSpaceSubsurfaceScatteringGuide (arg 264)
  and DLSSD.ColorBeforeParticles (output stage, texture 416 with its own history
  pair 384/392, zero-initialised on first use); guides array 6 -> 8
- DLSS.Use.HW.Depth: byte 980 and output byte 443 bit 24 (Cyberpunk passes the
  nonlinear depth buffer); replay's 'inverted' field becomes a bitmask
- shim: bind the two new resources, read the HW-depth flag, and accept every
  preset hint except E's 5 by mapping it to D's diamond_wallaby kernels
  (harness captures show 0x80000002/0x80000005 run preset D)
- harness: D4R_HARNESS_RR_EXTRA=particles,sss and D4R_HARNESS_RR_HW_DEPTH=1
- ptx2rr: out-of-range integer fetches return zero, matching ZLUDA's behaviour
  (the reference the stages are checked against)
- engine/rr/README: the capture findings behind the offsets

engine/runtime.h

@@ -255,6 +255,8 @@ struct RFrameImages {
     VkImageView color, motion, depth, normals, roughness, diffuseAlbedo, specularAlbedo;
     // Optional inputs (null: the game passes none): DLSSD.SpecularHitDistance and DLSS.DisocclusionMask, one channel each
     VkImageView specularHitDistance = VK_NULL_HANDLE, disocclusionMask = VK_NULL_HANDLE;
+    // DLSSD.ScreenSpaceSubsurfaceScatteringGuide (one channel) and DLSSD.ColorBeforeParticles (colour), optional too
+    VkImageView subsurfaceGuide = VK_NULL_HANDLE, colorBeforeParticles = VK_NULL_HANDLE;
     VkImageLayout layout = VK_IMAGE_LAYOUT_GENERAL; // of every view
 };
 struct RFrameSettings {
@@ -264,6 +266,7 @@ struct RFrameSettings {
     float frameTimeMs = 16.666667f;   // FrameTimeDeltaInMsec
     bool reset = false;
     bool depthInverted = false;       // creation flag NVSDK_NGX_DLSS_Feature_Flags_DepthInverted
+    bool hardwareDepth = false;       // DLSS.Use.HW.Depth: the depth input is the nonlinear depth buffer (Cyberpunk 2077)
     bool roughnessPacked = false;     // DLSS.Roughness.Mode 1: the roughness is the normals' w (no roughness texture)
     float worldToView[16] = {1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1}; // row-major, as the SDK passes them
     float viewToClip[16] = {1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1};