Add missing fileinput.tmpl.js required for BootstrapFileInputField (#836

)

(cherry picked from commit e5d3a69)

bootstrap-extensions/src/main/java/de/agilecoders/wicket/extensions/markup/html/bootstrap/form/fileinput/res/fileinput.tmpl.js

@@ -0,0 +1,9 @@
+;(function (undefined) {
+    'use strict';
+
+    // bind ajax submit behavior on upload button click
+    jQuery('.file-input:has(#${markupId}) .fileinput-upload-button').click(function(e){
+        e.preventDefault();
+        jQuery('#${markupId}').triggerHandler('${eventName}');
+    });
+})();