add extra javascript file for user interface functions

src/opnsense/www/js/opnsense_ui.js

+/**
+ * User interface shared components, requires opnsense.js for supporting functions.
+ */
+
+/**
+ * save form to server
+ * @param url endpoint url
+ * @param formid parent id to grep input data from
+ */
+function saveFormToEndpoint(url,formid) {
+    data = getFormData(formid);
+    ajaxCall(url=url,sendData=data,callback=function(data,status){
+        if ( status == "success") {
+            // if there are validation issues, update our screen and show a dialog.
+            if (data['validations'] != undefined) {
+                // update field validation
+                handleFormValidation(formid,data['validations']);
+                BootstrapDialog.show({
+                    type:BootstrapDialog.TYPE_WARNING,
+                    title: 'Input validation',
+                    message: 'Please correct validation errors in form'
+                });
+            }
+        } else {
+            // error handling, show internal errors
+            // Normally the form should only return validation issues, if other things go wrong throw an error.
+            BootstrapDialog.show({
+                type: BootstrapDialog.TYPE_ERROR,
+                title: 'save',
+                message: 'Unable to save data, an internal error occurred.<br> ' +
+                'Response from server was: <br> <small>'+JSON.stringify(data)+'</small>'
+            });
+        }
+
+    });
+
+}
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