Adopt GPSBabel's "exclude" quick command-line toggle flag

[jidanni]

Feature description

https://www.gpsbabel.org/htmldoc-1.9.0/filter_polygon.html at the bottom mentions an exclude flag.

That would be nice e.g., allowing one to toggle inclusion/exclusion on

ogrinfo file.gpx track_points -spat 120 24.18577 121 25

without needing to rip up the -spat terms and rewrite them...
See also #10266.

[jratike80]

Can be done with Spatialite functions by toggling true/false.

ogrinfo gdaltest.track.gpx -dialect sqlite -sql "select * from track_points where st_intersects(geometry, BuildMBR(16.143870,46.418684,16.25,47.10)) is false"