Store StopPrice for dry-run orders

closes #6996

tests/exchange/test_kucoin.py

@@ -123,5 +123,5 @@ def test_stoploss_adjust_kucoin(mocker, default_conf):
     assert exchange.stoploss_adjust(1501, order, 'sell')
     assert not exchange.stoploss_adjust(1499, order, 'sell')
     # Test with invalid order case
-    order['info']['stop'] = None
-    assert not exchange.stoploss_adjust(1501, order, 'sell')
+    order['stopPrice'] = None
+    assert exchange.stoploss_adjust(1501, order, 'sell')

tests/test_persistence.py

@@ -2717,5 +2717,7 @@ def test_order_to_ccxt(limit_buy_order_open):
     del raw_order['fee']
     del raw_order['datetime']
     del raw_order['info']
+    assert raw_order['stopPrice'] is None
+    del raw_order['stopPrice']
     del limit_buy_order_open['datetime']
     assert raw_order == limit_buy_order_open