Add days of week to flights table; add to import/export for flights

app/Database/factories/FlightFactory.php

@@ -26,6 +26,8 @@ $factory->define(App\Models\Flight::class, function (Faker $faker) use ($airline
         },
         'distance'       => $faker->numberBetween(0, 3000),
         'route'          => null,
+        'days'           => 0,
+        'level'          => 0,
         'dpt_time'       => $faker->time(),
         'arr_time'       => $faker->time(),
         'flight_time'    => $faker->numberBetween(60, 360),

app/Database/migrations/2017_06_17_214650_create_flight_tables.php

@@ -24,6 +24,7 @@ class CreateFlightTables extends Migration
             $table->string('alt_airport_id', 5)->nullable();
             $table->string('dpt_time', 10)->nullable();
             $table->string('arr_time', 10)->nullable();
+            $table->unsignedTinyInteger('days')->nullable();
             $table->unsignedInteger('level')->nullable()->default(0);
             $table->unsignedDecimal('distance')->nullable()->default(0.0);
             $table->unsignedInteger('flight_time')->nullable();