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/net_traits/request.rs

@@ -3,6 +3,7 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 use crate::ReferrerPolicy;
+use crate::ResourceTimingType;
 use http::HeaderMap;
 use hyper::Method;
 use msg::constellation_msg::PipelineId;
@@ -365,6 +366,14 @@ impl Request {
             _ => false,
         }
     }
+
+    pub fn timing_type(&self) -> ResourceTimingType {
+        if self.is_navigation_request() {
+            ResourceTimingType::Navigation
+        } else {
+            ResourceTimingType::Resource
+        }
+    }
 }
 
 impl Referrer {