File name changes when using ColmapForVisSatPatched

[wagnva]

Hey,

I used ColmapForVisSatPatched during Installation, but encountered some errors I believe are due to a newer Colmap Version being used than in the original ColmapForVisSat.

In detail:

1. The python scripts are contained inside Colmap/scripts/python, but SateliteSfM expects these to be inside preprocess_sfm/colmap/.
2. The read_model.py script has been renamed to read_write_model.py (relevant commit). SatelliteSfM still expects this file to be named read_model.py, so i had to manually rename it.

After these changes everything seems to work as expected, the sample provided runs through without any issues.

Best regards,
Valentin