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**Description**

<!-- A short description of your feature -->
This feature requests a way to support custom views in plugins without any menu. Right now, all the views listed in `AirflowPlugin.appbuilder_views` are added with menu to the appbuilder.

**Use case / motivation**
In a custom plugin I built, I need to add a distinct view for details of custom operator. Then I use the `BaseOperator.operator_extra_links` to link this new UI view with the task links.
However, this view has no need to show in the airflow menu, but rather should be shown in UI similarly to `views.DagModelView`. That is, the view should be added to flask appbuilder using `appbuilder.add_view_no_menu` call but right now all the views in `AirflowPlugin.appbuilder_views` are added by calling `appbuilder.add_view`

**What do you want to happen?**

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step back and describe what you are trying to achieve.

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Maybe if "name" is missing in the dict in `AirflowPlugin.appbuilder_views` list, then when integrating plugin to flask app context, it'll just call:
```python
appbuilder.add_view_no_menu(v["view"])
```
otherwise the default behavior.

tests/plugins/test_plugins_manager.py
name = "test_admin_views_plugin"
            appbuilder_views = [mock.MagicMock()]
        class AirflowAdminMenuLinksPlugin(AirflowPlugin):
            name = "test_menu_links_plugin"
            appbuilder_menu_items = [mock.MagicMock()]
        with mock_plugin_manager(
            plugins=[AirflowAdminViewsPlugin(), AirflowAdminMenuLinksPlugin()]
        ), caplog.at_level(logging.WARNING, logger='airflow.plugins_manager'):
            from airflow import plugins_manager
            plugins_manager.initialize_web_ui_plugins()
        assert caplog.record_tuples == []
    def test_should_not_warning_about_fab_and_flask_admin_plugins(self, caplog):
        class AirflowAdminViewsPlugin(AirflowPlugin):
            name = "test_admin_views_plugin"
            admin_views = [mock.MagicMock()]
            appbuilder_views = [mock.MagicMock()]
        class AirflowAdminMenuLinksPlugin(AirflowPlugin):
            name = "test_menu_links_plugin"
            menu_links = [mock.MagicMock()]
            appbuilder_menu_items = [mock.MagicMock()]
        with mock_plugin_manager(
            plugins=[AirflowAdminViewsPlugin(), AirflowAdminMenuLinksPlugin()]
        ), caplog.at_level(logging.WARNING, logger='airflow.plugins_manager'):
            from airflow import plugins_manager
            plugins_manager.initialize_web_ui_plugins()
        assert caplog.record_tuples == []
    def test_entrypoint_plugin_errors_dont_raise_exceptions(self, caplog):