HOT-FIX: altera inclusão de drf-yasg

Configura urls drf-yasg se ele está presente na lista de apps do projeto

sapl/api/urls.py

@@ -1,7 +1,5 @@
 from django.conf import settings
 from django.conf.urls import include, url
-from drf_yasg import openapi
-from drf_yasg.views import get_schema_view
 from rest_framework import permissions
 from rest_framework.routers import DefaultRouter
 
@@ -29,7 +27,10 @@ for app, built_sets in SaplApiViewSetConstrutor._built_sets.items():
 
 urlpatterns_router = router.urls
 
-
+urlpatterns_api_doc = []
+if 'drf_yasg' in settings.INSTALLED_APPS:
+    from drf_yasg import openapi
+    from drf_yasg.views import get_schema_view
     schema_view = get_schema_view(
         openapi.Info(
             title="Sapl API - docs",