Added MangaDex Api. Updated project structure.

MangaReader.Core/Sources/MangaDex/Search/MangaDexSearchResultDataRelationship.cs

@@ -0,0 +1,8 @@
+namespace MangaReader.Core.Sources.MangaDex.Search;
+
+public class MangaDexSearchResultDataRelationship
+{
+    public required Guid Id { get; set; }
+    public required string Type { get; set; }
+    public Dictionary<string, object> Attributes { get; set; } = [];
+}