whois: Installation of aan actively maintained whois client

whois: Installation of aan actively maintained whois client

- This whois client is being actively maintained. This version 5.5.10 was released on
   June 6th 2021 and regular updates have been ocurring several times per year.
- This client has all of its default whois servers compiled into it. These can be seen
   by reading the source files in the tarball.
- Therefore the whois.conf file is available for any additional servers that are decided
   to be required but as provided is empty.
- Installed on a vm testbed and worked to identify the details of ip addresses. Selecting
   an IP in the WUI logs screen also gets the ip information provided so it is working
   well with the WUI.

Tested-by:Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Reviewed-by: Peter Müller <peter.mueller@ipfire.org>