add: peer rename

Signed-off-by: Kingtous <kingtous@qq.com>

flutter/lib/models/ab_model.dart

@@ -141,6 +141,16 @@ class AbModel with ChangeNotifier {
     }
   }
 
+  void setPeerOption(String id, String key, String value) {
+    final it = peers.where((p0) => p0['id'] == id);
+    if (it.isEmpty) {
+      debugPrint("${id} is not exists");
+      return;
+    } else {
+      it.first[key] = value;
+    }
+  }
+
   void clear() {
     peers.clear();
     tags.clear();

flutter/lib/models/model.dart

@@ -1010,6 +1010,14 @@ class FFI {
     return bind.mainSetLocalOption(key: key, value: value);
   }
 
+  Future<String> getPeerOption(String id, String key) {
+    return bind.mainGetPeerOption(id: id, key: key);
+  }
+
+  Future<void> setPeerOption(String id, String key, String value) {
+    return bind.mainSetPeerOption(id: id, key: key, value: value);
+  }
+
   void setOption(String name, String value) {
     Map<String, String> res = Map()
       ..["name"] = name