[turbolizer] Add two keyboard shortcuts: R for relayout, / for search.

tools/turbolizer/graph-view.js

Index: tools/turbolizer/graph-view.js
diff --git a/tools/turbolizer/graph-view.js b/tools/turbolizer/graph-view.js
index 7431f4b9a14fe4501ceb652cd88e7d3085710152..51d0e4fddf88907958553309be086c5318a021aa 100644
--- a/tools/turbolizer/graph-view.js
+++ b/tools/turbolizer/graph-view.js
@@ -625,6 +625,19 @@ class GraphView extends View {
       showSelectionFrontierNodes(d3.event.keyCode == 38, undefined, true);
       break;
     }
+    case 82:
+      // 'r'
+      if (!d3.event.ctrlKey) {
+        this.layoutAction(this);
+      } else {
+        eventHandled = false;
+      }
+      break;
+    case 191:
+      // '/'
+      document.getElementById("search-input").focus();
+      document.getElementById("search-input").select();
+      break;
     default:
       eventHandled = false;
       break;