Add possibility to export from step 2 with no GUI

[mwlasiuk]

Example:

\build\bin\RelWithDebInfo\multi_view_tls_registration_step_2.exe C:\Users\michal\Desktop\MANDEYE_DATASETS\outdoor-urk\trial-1\hdmapping-raw\lio_result_0\session.mjs --export C:\Users\michal\Desktop\EXPORT_TEST --same-as-gui

Or with no decimation:

\build\bin\RelWithDebInfo\multi_view_tls_registration_step_2.exe C:\Users\michal\Desktop\MANDEYE_DATASETS\outdoor-urk\trial-1\hdmapping-raw\lio_result_0\session.mjs --export C:\Users\michal\Desktop\EXPORT_TEST

Test results:

PS C:\Users\michal\Desktop\EXPORT_TEST> fc.exe .\all_step_2.laz .\TEST_WITH_GUI.laz
Comparing files .\all_step_2.laz and .\TEST_WITH_GUI.LAZ
FC: no differences encountered

PS C:\Users\michal\Desktop\EXPORT_TEST> fc.exe .\trajectories.csv .\TEST_WITH_GUI.csv
Comparing files .\trajectories.csv and .\TEST_WITH_GUI.CSV
FC: no differences encountered