Modified some views, routes and models to work with the new many-to-many for tests and benchmarks

src/Controllers/TestController.php

@@ -47,9 +47,13 @@ class TestController extends Controller {
     $test = new Test;
     $test->title = $params['test_title'];
     $test->description = $params['test_description'];
-    $test->benchmark_id = $params['test_benchmark'];
     $test->component_id = $params['test_component'];
 
+    // attach benchmarks to test
+    foreach ($params['test_benchmarks'] as $b) {
+      $test->benchmarks()->attach($b);
+    }
+
     $test->save();
 
     // redirect the user back to the home page