Add remove function to stdext storages

src/framework/stdext/packed_storage.h

@@ -60,6 +60,22 @@ public:
         m_values[m_size++] = { id, packed_any(value) };
     }
 
+    bool remove(Key id) {
+        auto begin = m_values;
+        auto end = m_values + m_size;
+        auto it = std::find_if(begin, end, [=](const value_pair& pair) -> bool { return pair.id == id; } );
+        if(it == end)
+            return false;
+        int pos = it - begin;
+        auto tmp = new value_pair[m_size-1];
+        std::copy(begin, begin + pos, tmp);
+        std::copy(begin + pos + 1, end, tmp + pos);
+        delete[] m_values;
+        m_values = tmp;
+        m_size--;
+        return true;
+    }
+
     template<typename T>
     T get(Key id) const {
         for(SizeType i=0;i<m_size;++i)