shader: Implement ATOM/S and RED

src/shader_recompiler/profile.h

@@ -38,6 +38,7 @@ struct Profile {
     bool support_viewport_index_layer_non_geometry{};
     bool support_typeless_image_loads{};
     bool warp_size_potentially_larger_than_guest{};
+    bool support_int64_atomics{};
 
     // FClamp is broken and OpFMax + OpFMin should be used instead
     bool has_broken_spirv_clamp{};