Add vk_ray_trace_indirect_scissor sample

ray_tracing_indirect_scissor/shaders/raycommon.glsl

@@ -0,0 +1,20 @@
+#include "LanternIndirectEntry.glsl"
+
+struct hitPayload
+{
+  vec3 hitValue;
+  bool additiveBlending;
+};
+
+layout(push_constant) uniform Constants
+{
+  vec4  clearColor;
+  vec3  lightPosition;
+  float lightIntensity;
+  int   lightType;         // 0: point, 1: infinite
+  int   lanternPassNumber; // -1 if this is the full-screen pass. Otherwise, used to lookup trace indirect parameters.
+  int   screenX;
+  int   screenY;
+  int   lanternDebug;
+}
+pushC;