ARP Spoofing Protection (ARP Bind)

### Prerequisites
- [x] I am running the latest version
- [x] I checked the documentation and found no answer
- [x] I checked to make sure that this issue has not already been filed

### Problem Description
AdGuard Home is running as a local DNS and DHCP server on Raspberry Pi 2. Router is not used as DHCP server. I'd like to reduce chances of ARP spoofing. Some routers, like DD-WRT, provide basic ARP spoofing protection. I can also use Windows commands to create static IP-MAC ARP-bind between Windows devices and router. How can I ARP-bind AdGuard Home local DNS and DHCP server to devices connected to it?

### Proposed Solution
AdGuardHome.yaml section where static IP-MAC ARP bind can be specified.