changed structure of tasks

...n_scripts/move_it/move_it_basics/move_it_basics_3_eval.py

...n_scripts/move_it/move_it_basics/move_it_basics_4_eval.py

...scripts/move_it/move_it_objects/move_it_objects_1_eval.py

...scripts/move_it/move_it_objects/move_it_objects_2_eval.py

...scripts/move_it/move_it_objects/move_it_objects_3_eval.py

...ion_scripts/move_it/move_it_basics/move_it_basics_3.ipynb

...ion_scripts/move_it/move_it_basics/move_it_basics_4.ipynb

...n_scripts/move_it/move_it_objects/move_it_objects_1.ipynb

...n_scripts/move_it/move_it_objects/move_it_objects_2.ipynb

...n_scripts/move_it/move_it_objects/move_it_objects_3.ipynb

..._ws/src/learn_environment/task_pool/task_definitions.json

...nment/tasks/move_it/move_it_basics/move_it_basics_3.ipynb

...nment/tasks/move_it/move_it_basics/move_it_basics_4.ipynb

...ent/tasks/move_it/move_it_objects/move_it_objects_1.ipynb

...ent/tasks/move_it/move_it_objects/move_it_objects_2.ipynb

...ent/tasks/move_it/move_it_objects/move_it_objects_3.ipynb