Add backload for multiple file upload

Core/Models/LeafInputFile.cs

@@ -5,7 +5,14 @@ namespace LeafWeb.Core.Models
 	public class LeafInputFile
 	{
 		[Key]
-		public string LeafInputId { get; set; }
-		public byte[] File { get; set; }
+		public int LeafInputFileId { get; set; }
+
+		public virtual LeafInput LeafInput { get; set; }
+
+		public virtual LeafInputInfo LeafInputInfo { get; set; }
+
+		public string Filename { get; set; }
+		
+		public byte[] Contents { get; set; }
 	}
 }