parser-inc: Add std::sort to algorithm header

Author: rdb

parser-inc/algorithm

@@ -25,7 +25,11 @@ namespace std {
   constexpr const T &min(const T &a, const T &b);
   template<class T>
   constexpr const T &max(const T &a, const T &b);
+
+  template<class RandomIt>
+  void sort(RandomIt first, RandomIt last);
+  template<class RandomIt, class Compare>
+  void sort(RandomIt first, RandomIt last, Compare comp);
 }
 
 #endif
-