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/admin/airports/table.blade.php

@@ -4,7 +4,8 @@
     <th>ICAO</th>
     <th>Name</th>
     <th>Location</th>
-    <th>Hub</th>
+    <th style="text-align: center;">Hub</th>
+    <th style="text-align: center;">Notes</th>
     <th style="text-align: center;">GH Cost</th>
     <th style="text-align: center;">JetA</th>
     <th style="text-align: center;">100LL</th>
@@ -22,6 +23,11 @@
             <span class="label label-success">Hub</span>
           @endif
         </td>
+        <td style="text-align: center;">
+          @if(filled($airport->notes))
+            <span class="label label-info" title="{{ $airport->notes }}">Notes</span>
+          @endif
+        </td>
         <td style="text-align: center;">
           {{ $airport->ground_handling_cost }}
         </td>