Added model factories for the remaining models.

database/factories/BookingFactory.php

@@ -0,0 +1,12 @@
+<?php
+
+use Faker\Generator as Faker;
+
+$factory->define(App\Booking::class, function (Faker $faker) {
+    return [
+        'date'=> $faker->dateTimeBetween('2014-01-01'),
+        'reference' => $faker->text(50),
+        'person_or_company' => $faker->name,
+        'note' => $faker->text(10)
+    ];
+});