feat(router): add predicate function mode for runGuardsAndResolvers (#27682)

This option means guards and resolvers will ignore changes when a provided predicate function returns `false`. This supports use cases where an application needs to ignore some param updates but not others. For example, changing a sort param in the URL might need to be ignored, whereas changing the a `project` param might require re-run of guards and resolvers.

Related to #26861 #18253 #27464

PR Close #27682

packages/router/src/utils/preactivation.ts

@@ -147,6 +147,9 @@ function getRouteGuards(
 function shouldRunGuardsAndResolvers(
     curr: ActivatedRouteSnapshot, future: ActivatedRouteSnapshot,
     mode: RunGuardsAndResolvers | undefined): boolean {
+  if (typeof mode === 'function') {
+    return mode(curr, future);
+  }
   switch (mode) {
     case 'pathParamsChange':
       return !equalPath(curr.url, future.url);