Adding of archive items is mostly operational. Need to handle file upload

OpenArchival.Core/DataObjects/ArchiveItem.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OpenArchival.Core;
+
+public class ArchiveItem
+{
+    public required Category Category { get; set; }
+    
+    public required string ItemTitle { get; set; }
+
+    public string? Description { get; set; }
+
+    public string? StorageLocation { get; set; }
+
+    public string? ArtifactType { get; set; }
+
+    public List<string>? Tags { get; set; }
+
+    public List<string>? ListedNames { get; set; }
+
+    public List<DateTime>? AssociatedDates { get; set; }
+
+    public List<string>? Defects { get; set; }
+
+    public List<string>? RelatedArtifacts { get; set; }
+    
+    /// <summary>
+    /// TODO: Implement
+    /// </summary>
+    public List<string>? Files { get; set; }
+
+    public bool IsPublic { get; set; } = true;
+}