Plugged in repository class for location data

Seperated data logic for locations and put it into its own repository
class for better organization and readability of controller classes.

Data methods are still simple so no need for an interface class just
yet, but will probably implement at a later date

app/Http/Controllers/AppealController.php

@@ -30,6 +30,7 @@ class AppealController extends Controller
                     'error' => 'Appeal already in process for Location',
                 ]);
             } else {
+                //TODO: Add empty string filtering and check if location exists in DB
                 $new = Appeal::create([
                     'uuid'           => Uuid::uuid4(),
                     'location'       => $request->location,