As far as I see there is no package that provides the neo.map console keyboard layout. Perhaps it can be added to the package that currently provides the layouts? Or a new package could be created that adds neo.map to some subfolder of /usr/share/keymaps. The file can be downloaded from: https://svn.neo-layout.org/linux/console/neo.map More information about the project https://neo-layout.org/index_en.html
I think it should be added upstream. http://kbd-project.org/
https://github.com/legionus/kbd/commit/ea8c407f92dad5e5528773d2d1f5066f8c3698cc