[PM-22097] Add Columns to Collections for Org User Default Collection (#5908)

* Adding columns and database migrations for organization DefaultUserCollection.

src/Core/Entities/Collection.cs

@@ -1,4 +1,5 @@
 using System.ComponentModel.DataAnnotations;
+using Bit.Core.Enums;
 using Bit.Core.Utilities;
 
 #nullable enable
@@ -14,6 +15,8 @@ public class Collection : ITableObject<Guid>
     public string? ExternalId { get; set; }
     public DateTime CreationDate { get; set; } = DateTime.UtcNow;
     public DateTime RevisionDate { get; set; } = DateTime.UtcNow;
+    public CollectionType Type { get; set; } = CollectionType.SharedCollection;
+    public string? DefaultUserCollectionEmail { get; set; }
 
     public void SetNewId()
     {

src/Core/Enums/CollectionType.cs

@@ -0,0 +1,7 @@
+namespace Bit.Core.Enums;
+
+public enum CollectionType
+{
+    SharedCollection = 0,
+    DefaultUserCollection = 1,
+}