Add "Notes" to Airports (#1467)

* Notes for Airports

Adds capability of having notes/remarks for airports, includes

* New database field
* Airport Model change
* CSV Import/Export capability for notes
* Admin Airports list page change
* Admin Airports edit page change
* Default Template Airport show page change

* Update Airport Tests

* Add the new field to source csv
* Check if the import works

* Update AirportFactory.php

Co-authored-by: Nabeel S <nabeelio@users.noreply.github.com>

resources/views/layouts/default/airports/show.blade.php

@@ -16,12 +16,11 @@
 
     {{-- Show the airspace map in the other column --}}
     <div class="col-7">
-      {{ Widget::AirspaceMap([
-          'width' => '100%',
-          'height' => '400px',
-          'lat' => $airport->lat,
-          'lon' => $airport->lon,
-        ]) }}
+      {{ Widget::AirspaceMap(['width' => '100%', 'height' => '400px', 'lat' => $airport->lat, 'lon' => $airport->lon]) }}
+      @if(filled($airport->notes))
+        <hr>
+        {!! $airport->notes !!}
+      @endif
     </div>
   </div>
   <div class="row">