bug 14861 part 2: rasterization review issues (WIP)

Add standardSampleLocations.

https://cvs.khronos.org/bugzilla/show_bug.cgi?id=14861
diff --git a/include/vulkan.h b/include/vulkan.h
index f695663..eba214c 100644
--- a/include/vulkan.h
+++ b/include/vulkan.h
@@ -1279,6 +1279,7 @@
     float                                       pointSizeGranularity;
     float                                       lineWidthGranularity;
     VkBool32                                    strictLines;
+    VkBool32                                    standardSampleLocations;
     VkDeviceSize                                optimalBufferCopyOffsetAlignment;
     VkDeviceSize                                optimalBufferCopyRowPitchAlignment;
 } VkPhysicalDeviceLimits;