Can request call offer

lib/lists/call_members_list.dart

@@ -14,4 +14,8 @@ class CallMembersList extends AbstractList<CallMember> {
 
   /// Get the connection of a specific user
   CallMember getUser(int userID) => this.firstWhere((f) => f.userID == userID);
+
+  /// Extract ready peers from this list
+  CallMembersList get readyPeers =>
+      CallMembersList()..addAll(where((f) => f.status == MemberStatus.READY));
 }