Add cross-section convert strategies

StructureHelperCommon/Models/Analyses/DateVersion.cs

@@ -9,8 +9,18 @@ namespace StructureHelperCommon.Models.Analyses
 {
     public class DateVersion : IDateVersion
     {
+        public Guid Id { get; }
         public DateTime DateTime { get; set; }
+        public ISaveable AnalysisVersion { get; set; }
 
-        public ISaveable Item { get; set; }
+        public DateVersion(Guid id)
+        {
+            Id = id;
+        }
+
+        public DateVersion() : this (Guid.NewGuid())
+        {
+            
+        }
     }
 }

StructureHelperCommon/Models/Analyses/IDateVersion.cs

@@ -7,9 +7,9 @@ using System.Threading.Tasks;
 
 namespace StructureHelperCommon.Models.Analyses
 {
-    public interface IDateVersion
+    public interface IDateVersion : ISaveable
     {
         DateTime DateTime { get; set; }
-        ISaveable Item { get; set; }
+        ISaveable AnalysisVersion { get; set; }
     }
 }

StructureHelperCommon/Models/Analyses/VersionProcessor.cs

@@ -19,7 +19,7 @@ namespace StructureHelperCommon.Models.Analyses
             Id = id;
             Versions = new();
         }
-        public VersionProcessor() : this (new Guid())
+        public VersionProcessor() : this (Guid.NewGuid())
         {
             
         }
@@ -34,7 +34,7 @@ namespace StructureHelperCommon.Models.Analyses
             var version = new DateVersion()
             {
                 DateTime = DateTime.Now,
-                Item = newItem
+                AnalysisVersion = newItem
             };
             AddVersion(version);
         }