gdal2tiles - Add callback paramter on precentage update

[asafMasa]

Expected behavior and actual behavior.

Currently Gdal2Tiles has the following option -v, --verbose Generate verbose output of tile generation. This only prints the precentage to the stdout

As a user i need a notifiaction on precentage progress status - like in https://gdal.org/python/ gdalwarp

[rouault]

The new "gdal raster tile" command will fix that: https://github.com/OSGeo/gdal/pull/12237

[rouault]

closing as superseded by gdal raster tile