Issue : Missing shebang in `csv2tum.py` and `evaluate_traj.py`

[PrinceSajjadHussain]

The files csv2tum.py and evaluate_traj.py are missing the shebang line #!/usr/bin/python3. While they may be run as modules currently, adding the shebang line would make them executable as standalone scripts. It promotes consistency across the project and makes the scripts more portable.