Feature request: Blacklist local IP addresses

[juchiast]

For our project, we need to allow access to only global IP addresses (https://doc.rust-lang.org/stable/std/net/enum.IpAddr.html#method.is_global). I suggest adding new CLI arguments:

• --allow-global-ip
• --deny-global-ip
• --allow-local-ip
• --deny-local-ip

[teleclimber]

I also badly need this. It's basic SSRF protection (OWASP ref) that is lacking from Deno. I wrote a similar issue here:

https://github.com/denoland/deno/issues/21227