add additional translog properties as per elastic/elasticsearch#28613 …

…and add properties we weren't mapping

src/Nest/CommonOptions/Stats/TranslogStats.cs

@@ -8,11 +8,23 @@ public class TranslogStats
 		[JsonProperty("operations")]
 		public long Operations  { get; set; }
 
+		[JsonProperty("uncommitted_operations")]
+		public long UncommittedOperations  { get; set; }
+
 		[JsonProperty("size")]
 		public string Size { get; set; }
 
 		[JsonProperty("size_in_bytes")]
 		public long SizeInBytes  { get; set; }
 
+		[JsonProperty("uncommitted_size")]
+		public string UncommittedSize { get; set; }
+
+		[JsonProperty("uncommitted_size_in_bytes")]
+		public long UncommittedSizeInBytes  { get; set; }
+
+		[JsonProperty("earliest_last_modified_age")]
+		public long EarliestLastModifiedAge  { get; set; }
+
 	}
-}
+}