add sol2uml test skeleton

apps/remix-ide-e2e/nightwatch.ts

@@ -1,7 +1,7 @@
 module.exports = {
   src_folders: ['dist/apps/remix-ide-e2e/src/tests'],
   output_folder: './reports/tests',
-  custom_commands_path: ['dist/apps/remix-ide-e2e/src/commands'],
+  custom_commands_path: ['dist/apps/remix-ide-e  2e/src/commands'],
   custom_assertions_path: '',
   page_objects_path: '',
   globals_path: '',

apps/remix-ide-e2e/src/tests/sol2uml.test.ts

@@ -0,0 +1,9 @@
+'use strict'
+import { NightwatchBrowser } from 'nightwatch'
+import init from '../helpers/init'
+
+module.exports = {
+  before: function (browser: NightwatchBrowser, done: VoidFunction) { 
+    init(browser, done)
+   }
+}