Add all mecanism about the blender unit test

tests/utils/container.py

@@ -0,0 +1,17 @@
+import docker
+
+
+def clear_container_test(tag: str = 'stilobique/blender:latest'):
+    client = docker.from_env()
+    containers = client.containers.list(all=True)
+
+    for container in containers:
+        image_tag = container.image.tags[0]
+        status = container.status
+        if image_tag == tag and status == 'exited':
+            container.remove()
+
+
+if __name__ == '__main__':
+    # Clear all unused blender container
+    clear_container_test()