Started build of tag view

- Created listing
- Allows drilldown to tag name
- Shows totals

Not yet covered via testing

app/Http/Controllers/TagController.php

@@ -17,6 +17,24 @@ class TagController extends Controller
         $this->tagRepo = $tagRepo;
     }
 
+    /**
+     * Show a listing of existing tags in the system.
+     */
+    public function index(Request $request)
+    {
+        $search = $request->get('search', '');
+        $nameFilter = $request->get('name', '');
+        $tags = $this->tagRepo
+            ->queryWithTotals($search, $nameFilter)
+            ->paginate(20);
+
+        return view('tags.index', [
+            'tags'   => $tags,
+            'search' => $search,
+            'nameFilter' => $nameFilter,
+        ]);
+    }
+
     /**
      * Get tag name suggestions from a given search term.
      */