OAPIF: Increase the default page size

[jratike80]

The current default page size in the OGC API Features driver is 10. While this default value is also defined in the OGC API Features standard, for practical use it is all too small. See discussion in the mailing list thread https://lists.osgeo.org/pipermail/gdal-dev/2023-October/057758.html

I think that the larger the page size, and so the less requests needed for reading the data, the better. For that reason the page size could be the maximum limit that is defined in the API of the service. It is of course possible that a service provider has not considered what is a reasonable max limit but just blindly used the value 10000 as it appears in the standard https://docs.ogc.org/is/17-069r4/17-069r4.html#_parameter_limit. For my mind GDAL could still trust on the information that the /api endpoint of the service delivers.

[rouault]

Cf https://lists.osgeo.org/pipermail/gdal-dev/2023-October/057759.html for suggested algorithm