location-importer.in: only import relevant data from AFRINIC, APNIC and RIPE
In contrast to ARIN and LACNIC, we are able to process more detailled
feeds from those RIRs, avoiding storage of obviously unnecessary data.
Thanks to various SQL optimisations, doing so now takes less time than
the first version of this did.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org> Signed-off-by: Peter Müller <peter.mueller@ipfire.org> Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>