chore: add 2 helper functions to determine if a network is an IPv4 or…

… IPv6 network

pkg/helper/network.go

@@ -0,0 +1,15 @@
+package helper
+
+import "net"
+
+// isIPv4Network checks if the given network is an IPv4 network.
+// It returns true if the network is an IPv4 network, otherwise false.
+func IsIPv4Network(network *net.IPNet) bool {
+	return network.IP.To4() != nil
+}
+
+// isIPv6Network checks if the given network is an IPv6 network.
+// It returns true if the network is an IPv6 network, otherwise false.
+func IsIPv6Network(network *net.IPNet) bool {
+	return network.IP.To16() != nil
+}