Revert "Issue #2085243 by dawehner: Rename Menu module into Menu UI module."

...s/search/lib/Drupal/search/Tests/SearchQueryAlterTest.php

...modules/search/lib/Drupal/search/Tests/SearchTestBase.php

core/modules/search/lib/Drupal/search/ViewsSearchQuery.php

core/modules/search/search.module

...search_extra_type/Plugin/Search/SearchExtraTypeSearch.php

...ts/modules/search_query_alter/search_query_alter.info.yml

...ests/modules/search_query_alter/search_query_alter.module

.../modules/simpletest/lib/Drupal/simpletest/WebTestBase.php

...rupal/system/Tests/Cache/PageCacheTagsIntegrationTest.php

...modules/system/tests/modules/menu_test/menu_test.info.yml

...toolbar/lib/Drupal/toolbar/Tests/ToolbarAdminMenuTest.php

...ules/user/lib/Drupal/user/Tests/UserAccountLinksTests.php

core/modules/user/lib/Drupal/user/Tests/UserSearchTest.php

...ules/views/lib/Drupal/views/Plugin/views/display/Page.php

...lib/Drupal/views/Plugin/views/wizard/WizardPluginBase.php

...odules/views_ui/lib/Drupal/views_ui/Tests/DisplayPath.php

core/profiles/standard/standard.info.yml