Fix error due to the merge

navipy/database/__init__.py

navipy/errorprop/test.py

navipy/moving/test_agent.py

navipy/trajectories/__init__.py

navipy/trajectories/plot.py

navipy/trajectories/random.py

navipy/trajectories/test_markers.py

navipy/trajectories/test_trajectory.py

navipy/trajectories/test_triangle.py

navipy/trajectories/transformations.py