Feature Request: Support CIDR-based Search in WAF Events

Add support for searching WAF events by CIDR subnet (e.g. 204.62.248.0/23).
Currently, to determine whether requests from a specific subnet are being blocked, I have to manually check every IP address within the range (512 addresses in this example). It would be much more convenient if the search field accepted a CIDR subnet and automatically filtered all events for IP addresses within that range.