provide useless import for compatibility

src/dynamic_graph/sot/core/meta_tasks_kine.py

 from dynamic_graph import plug
 from dynamic_graph.sot.core import GainAdaptive, Task
 from dynamic_graph.sot.core.meta_task_6d import MetaTask6d
+# TODO: this function is imported from meta_tasks_kine in several places, whereas it is defined in meta_tasks
+from dynamic_graph.sot.core.meta_tasks import gotoNd  # noqa
 from dynamic_graph.sot.core.meta_tasks import MetaTaskCom