Implement cache for networks

lib/policy/network.go

@@ -27,6 +27,7 @@ type Network struct {
 }
 
 func (n Network) FetchPrefixes(c *http.Client, whois *utils.RADb) (output []net.IPNet, err error) {
+
 	if len(n.Prefixes) > 0 {
 		for _, prefix := range n.Prefixes {
 			ipNet, err := parseCIDROrIP(prefix)

lib/policy/options.go

@@ -1,10 +1,12 @@
 package policy
 
 import (
+	"git.gammaspectra.live/git/go-away/utils"
 	"net/http"
 )
 
 type Settings struct {
+	Cache                  utils.Cache
 	Backends               map[string]http.Handler
 	PrivateKeySeed         []byte
 	Debug                  bool