Reserve Extension number 620 for Faith Ekstrand

Author: gfxstrand

xml/vk.xml

@@ -27132,6 +27132,12 @@ typedef void* <name>MTLSharedEvent_id</name>;
                 <enum value="&quot;VK_EXT_extension_619&quot;"              name="VK_EXT_EXTENSION_619_EXTENSION_NAME"/>
             </require>
         </extension>
+        <extension name="VK_EXT_extension_620" number="620" author="EXT" contact="Faith Ekstrand @gfxstrand" supported="disabled">
+            <require>
+                <enum value="0"                                             name="VK_EXT_EXTENSION_620_SPEC_VERSION"/>
+                <enum value="&quot;VK_EXT_extension_620&quot;"              name="VK_EXT_EXTENSION_620_EXTENSION_NAME"/>
+            </require>
+        </extension>
     </extensions>
     <formats>
         <format name="VK_FORMAT_R4G4_UNORM_PACK8" class="8-bit" blockSize="1" texelsPerBlock="1" packed="8">