Add preview from father, add new features

resources/views/load/form/duallist.blade.php

@@ -0,0 +1,25 @@
+@if(!defined('LOAD_DUALLIST'))
+	@push('scripts')
+		<script src="{{ asset('/assets/plugins/bootstrap4-duallistbox/jquery.bootstrap-duallistbox.min.js') }}"></script>  
+
+		<script>
+			function initDualList(sel) {
+				var selector = (typeof(sel) == 'undefined') ? '.duallist' : sel;
+				var settings = {
+					nonSelectedListLabel: 'Non-selected',
+					selectedListLabel: 'Selected',
+					preserveSelectionOnMove: 'moved',
+					moveOnSelect: true,
+					nonSelectedFilter: ''
+				};
+				$(selector).bootstrapDualListbox(settings);
+			}
+		</script>
+
+	@endpush
+
+	@push('css')
+		<link rel="stylesheet" href="{{ asset('/assets/plugins/bootstrap4-duallistbox/bootstrap-duallistbox.min.css') }}">  
+	@endpush
+	@php(define('LOAD_DUALLIST', true))
+@endif