Services / Unbound DNS / Blocklist - add Abuse.ch ThreatFox list

[AdSchellevis]

Important notices

Before you add a new report, we ask you kindly to acknowledge the following:

• I have read the contributing guide lines at https://github.com/opnsense/core/blob/master/CONTRIBUTING.md
• I am convinced that my issue is new after having checked both open and closed issues at https://github.com/opnsense/core/issues?q=is%3Aissue

Is your feature request related to a problem? Please describe.

Although our IDPS module already contains ThreatFox to alert or drop indicators of compromise, in some scenario's it's more convenient to stop unbound forwarding these requests.

Describe the solution you like

Add the list https://threatfox.abuse.ch/downloads/hostfile to the list of available blocklist.

Describe alternatives you considered

none

Additional context

none