implement PictureService and social gallery models

Models/PictureModels.cs

@@ -16,6 +16,89 @@ namespace Chtn.CSharp.SDK.Models.Media
         [JsonProperty("path")] public string Path { get; set; }
         [JsonProperty("title")] public string Title { get; set; }
         [JsonProperty("uploaded_at")] public TimeStamp UploadedAt { get; set; }
+        [JsonProperty("likes")] public int Likes { get; set; }
+        [JsonProperty("visibility")] public string Visibility { get; set; }
+    }
 
+    public class Comment
+    {
+        [JsonProperty("id")] public string Id { get; set; }
+        [JsonProperty("authorId")] public string AuthorId { get; set; }
+        [JsonProperty("content")] public string Content { get; set; }
+        [JsonProperty("createdAt")] public TimeStamp CreatedAt{ get; set; }
+    }
+
+    public class GetReq
+    {
+        [JsonProperty("id")] public string Id { get; set; }
+    }
+
+    public class CreateAlbumReq
+    {
+        [JsonProperty("name")] public string Name { get; set; }
+    }
+
+    public class FinalizeUploadReq
+    {
+        [JsonProperty("uploadId")] public string UploadId { get; set; }
+    }
+
+    public class DeleteImageReq
+    {
+        [JsonProperty("id")] public string Id { get; set; }
+    }
+
+    public class ChangePictureVisibilityReq
+    {
+        [JsonProperty("id")] public string Id { get; set; }
+        [JsonProperty("visibility")] public string Visibility { get; set; }
+    }
+
+    public class EditPictureTitle
+    {
+        [JsonProperty("id")] public string Id { get; set; }
+        [JsonProperty("title")] public string Title { get; set; }
+    }
+
+    public class TogglePictureLikeReq
+    {
+        [JsonProperty("id")] public string Id { get; set; }
+    }
+
+    public class PostCommentReq
+    {
+        [JsonProperty("imageId")] public string ImageId { get; set; }
+        [JsonProperty("content")] public string Content { get; set; }
+    }
+
+    public class ToggleFollowReq
+    {
+        [JsonProperty("targetUserId")] public string TargetUserId { get; set; }
+    }
+
+    public class GetAlbumsReq
+    {
+        [JsonProperty("userId")] public string UserId { get; set; }
+    }
+
+    public class GetCommentsReq
+    {
+        [JsonProperty("imageId")] public string ImageId { get; set; }
+    }
+
+    public class UploadImageReq
+    {
+        [JsonProperty("albumId")] public string AlbumId { get; set; }
+        [JsonProperty("data")] public byte[] Data { get; set; }
+    }
+
+    public class GetResp
+    {
+        [JsonProperty("image")] public Image Image { get; set; }
+    }
+
+    public class DiscoveryResp
+    {
+        [JsonProperty("trending")] public List<Image> Trending { get; set; }
     }
 }