chore: import upstream snapshot with attribution

Common/Orders/OrderField.cs

@@ -0,0 +1,48 @@
+/*
+ * QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
+ * Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
+
+namespace QuantConnect.Orders
+{
+    /// <summary>
+    /// Specifies an order field that does not apply to all order types
+    /// </summary>
+    public enum OrderField
+    {
+        /// <summary>
+        /// The limit price for a <see cref="LimitOrder"/>, <see cref="StopLimitOrder"/> or <see cref="LimitIfTouchedOrder"/> (0)
+        /// </summary>
+        LimitPrice,
+
+        /// <summary>
+        /// The stop price for stop orders (<see cref="StopMarketOrder"/>, <see cref="StopLimitOrder"/>) (1)
+        /// </summary>
+        StopPrice,
+
+        /// <summary>
+        /// The trigger price for a <see cref="LimitIfTouchedOrder"/> (2)
+        /// </summary>
+        TriggerPrice,
+
+        /// <summary>
+        /// The trailing amount for a <see cref="TrailingStopOrder"/> (3)
+        /// </summary>
+        TrailingAmount,
+
+        /// <summary>
+        /// Whether the trailing amount for a <see cref="TrailingStopOrder"/> is a percentage or an absolute currency value (4)
+        /// </summary>
+        TrailingAsPercentage
+    }
+}