Bug#1106662: mariadb-client: Split off some tools out mariadb-client

[Otto Kekäläinen]

Hi!

This is somewhat improved via
https://salsa.debian.org/mariadb-team/mariadb-server/-/merge_requests/140

If you want to see the Perl tools actually split out into a separate
package, feel free to submit a Merge Request to implement it.