Add extended force tuple result

StructureHelperLogics/NdmCalculations/Analyses/ByForces/IExtendedForceTupleResult.cs

@@ -0,0 +1,10 @@
+using StructureHelperCommon.Models.States;
+
+namespace StructureHelperLogics.NdmCalculations.Analyses.ByForces
+{
+    public interface IExtendedForceTupleResult
+    {
+        IStateCalcTermPair StateCalcTermPair { get; set; }
+        IForcesTupleResult ForcesTupleResut { get; set; }
+    }
+}