Add Contract interface for airport lookup functionality (#365)

* Add Contract interface for airport lookup functionality

* style ci fixes

app/Services/AirportLookup/VaCentralLookup.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Services\AirportLookup;
+
+use App\Contracts\AirportLookup;
+use Illuminate\Support\Facades\Log;
+use VaCentral\Airport;
+use VaCentral\HttpException;
+
+class VaCentralLookup extends AirportLookup
+{
+    /**
+     * Lookup the information for an airport
+     *
+     * @param string $icao
+     *
+     * @return array
+     */
+    public function getAirport($icao)
+    {
+        try {
+            return Airport::get($icao);
+        } catch (HttpException $e) {
+            Log::error($e);
+            return;
+        }
+    }
+}