add collection syncing

src/App/Models/Api/Response/CipherResponse.cs

@@ -17,6 +17,7 @@ namespace Bit.App.Models.Api
         public bool OrganizationUseTotp { get; set; }
         public JObject Data { get; set; }
         public IEnumerable<AttachmentResponse> Attachments { get; set; }
+        public IEnumerable<string> CollectionIds { get; set; }
         public DateTime RevisionDate { get; set; }
     }
 }

src/App/Models/Api/Response/CollectionResponse.cs

@@ -0,0 +1,9 @@
+namespace Bit.App.Models.Api
+{
+    public class CollectionResponse
+    {
+        public string Id { get; set; }
+        public string Name { get; set; }
+        public string OrganizationId { get; set; }
+    }
+}

src/App/Models/Api/Response/SyncResponse.cs

@@ -6,6 +6,7 @@ namespace Bit.App.Models.Api
     {
         public ProfileResponse Profile { get; set; }
         public IEnumerable<FolderResponse> Folders { get; set; }
+        public IEnumerable<CollectionResponse> Collections { get; set; }
         public IEnumerable<CipherResponse> Ciphers { get; set; }
         public DomainsResponse Domains { get; set; }
     }