Experiment folder cannot be crated on Windows

[Andrej-sens]

The experiment folder cannot be created when launching python run_geometry_reconstruction.py --case person_0 --conf ./configs/example_config/neural_strands-monocular.yaml --exp_name first_stage_person_0 due to colons in the file path. Error: OSError: [WinError 123] The filename, directory name, or volume label syntax is incorrect: 'exps_first_stage\\first_stage_person_0\\person_0\\neural_strands-monocular\\2023-07-25_20:08:00'

I went around that by adding the line in the run_geometry_reconstruction.py
time = time.replace(':','_')