allow setting of IATA code for airline

resources/views/admin/airlines/fields.blade.php

@@ -4,6 +4,11 @@
     {!! Form::text('code', null, ['class' => 'form-control']) !!}
 </div>
 
+<div class="form-group col-sm-6">
+    {!! Form::label('iata', 'IATA:') !!}
+    {!! Form::text('iata', null, ['class' => 'form-control']) !!}
+</div>
+
 <!-- Name Field -->
 <div class="form-group col-sm-6">
     {!! Form::label('name', 'Name:') !!}

resources/views/admin/airlines/show_fields.blade.php

@@ -10,6 +10,11 @@
     <p>{!! $airlines->code !!}</p>
 </div>
 
+<div class="form-group">
+    {!! Form::label('iata', 'IATA:') !!}
+    <p>{!! $airlines->iata !!}</p>
+</div>
+
 <!-- Name Field -->
 <div class="form-group">
     {!! Form::label('name', 'Name:') !!}

resources/views/admin/airlines/table.blade.php

@@ -1,6 +1,7 @@
 <table class="table table-responsive" id="airlines-table">
     <thead>
         <th>Code</th>
+        <th>IATA</th>
         <th>Name</th>
         <th style="text-align: center;">Active</th>
         <th colspan="3" style="text-align: right;">Action</th>
@@ -9,6 +10,7 @@
     @foreach($airlines as $al)
         <tr>
             <td>{!! $al->code !!}</td>
+            <td>{!! $al->iata !!}</td>
             <td>{!! $al->name !!}</td>
             <td style="text-align: center;">
                 <i class="fa fa-{{$al->active == 1?"check":""}}-square-o" aria-hidden="true"