Improved tests for app settings and added tests for dav_base.config.modules.ModuleMeta

dav_base/tests/fake_app1/module.json

@@ -0,0 +1,4 @@
+{
+    "url_prefix": "test",
+    "app_config": ".apps.AppConfig"
+}

dav_base/tests/fake_app1/urls.py

@@ -0,0 +1,8 @@
+from django.urls import re_path
+from django.views import generic
+
+app_name = 'fake_app'
+
+urlpatterns = [
+    re_path(r'^$', generic.TemplateView.as_view(), name='root'),
+]