Issue #4: Stop using load and start using fixture directory

Signed-off-by: Lucas Fernandes de Oliveira <lfoliveira@inf.ufpr.br>

.gitignore

 config/config.env
+data/load/
 *.swp
 *.swo
 *.tmp

.gitlab-ci.yml

@@ -22,7 +22,7 @@ run_test:
         - apt-get update -q -y
         - apt-get install -y postgresql-client-10             
         - ./psql-manager/manager.sh create ./data/
-        - ./psql-manager/manager.sh load ./data/
+        - ./psql-manager/manager.sh fixture ./data/
     tags:
         - debian
         - postgres