Switch to list of ip cidrs to block

[cweibel]

Changes proposed in this pull request:

• Switch for a single cidr range to a list of cidr ranges which will dynamically be created starting at rule 20
• This solution has a maximum of 80 cidr ranges without intervention
• Tested manually against dev
• For issue Expand netblock to support an array of values #1612

security considerations

None, end result is the exact same acl rules just future proofing if we need to expand the list of ip cidrs

[markdboyd]

I don't think we want to set any default values. Because if we happened to not pass the real values through in CI automatically, then traffic from these default CIDRs would get blocked

[cweibel]

Valid point, I had these for testing but removed with a new commit