UpdateStrategy for Actions was added

StructureHelperCommon/Models/Forces/IForceAction.cs

@@ -7,10 +7,23 @@ using System.Threading.Tasks;
 
 namespace StructureHelperCommon.Models.Forces
 {
-    public interface IForceAction : IAction, ICloneable
+    /// <summary>
+    /// Action as force load
+    /// </summary>
+    public interface IForceAction : IAction
     {
+        /// <summary>
+        /// True means force action is put in center of gravity
+        /// </summary>
         bool SetInGravityCenter { get; set; }
+        /// <summary>
+        /// Point of applying of force load
+        /// </summary>
         IPoint2D ForcePoint { get; set; }
+        /// <summary>
+        /// Return combination of forces
+        /// </summary>
+        /// <returns></returns>
         IForceCombinationList GetCombinations();
     }
 }