Make Iterator public

Author: marselester

src/maxminddb.zig

@@ -10,6 +10,7 @@ pub const geoip2 = @import("geoip2.zig");
 pub const Error = reader.ReadError || decoder.DecodeError;
 pub const Reader = reader.Reader;
 pub const Metadata = reader.Metadata;
+pub const Iterator = reader.Iterator;
 pub const Network = net.Network;
 
 test {

src/reader.zig

@@ -326,7 +326,7 @@ const WithinNode = struct {
     node: usize,
 };
 
-fn Iterator(comptime T: type) type {
+pub fn Iterator(comptime T: type) type {
     return struct {
         reader: *Reader,
         node_count: usize,