Implement first version of manual strategy

strategy_evaluation/BenchmarkStrategy.py

@@ -25,10 +25,8 @@ class BenchmarkStrategy:
         orders["Symbol"] = symbol
         orders["Order"] = ""
         orders["Shares"] = 0
-
         orders.iloc[0] = [symbol, "BUY", 1000]
-        orders.iloc[-1] = [symbol, "SELL", 1000]
-        orders = orders[orders["Shares"] != 0]
+        orders.iloc[-1] = [symbol, "SELL", -1000]
 
         if self.verbose:
             print(type(orders))  # it better be a DataFrame!