refactored performance timing to align with updated spec

refactoring with ResourceFetchMetadata

implemented deprecated window.timing functionality

created ResourceTimingListener trait

fixed w3c links in navigation timing

updated include.ini to run resource timing tests on ci

components/script/dom/performanceentry.rs

@@ -59,6 +59,10 @@ impl PerformanceEntry {
     pub fn start_time(&self) -> f64 {
         self.start_time
     }
+
+    pub fn duration(&self) -> f64 {
+        self.duration
+    }
 }
 
 impl PerformanceEntryMethods for PerformanceEntry {