Restructuring of the files

Facepunch.Steamworks/Structs/LeaderboardUpdate.cs

@@ -0,0 +1,22 @@
+using System.Linq;
+
+namespace Facepunch.Steamworks.Data
+{
+	public struct LeaderboardUpdate
+	{
+		public int Score;
+		public bool Changed;
+		public int NewGlobalRank;
+		public int OldGlobalRank;
+		public int RankChange => NewGlobalRank - OldGlobalRank;
+
+		internal static LeaderboardUpdate From( LeaderboardScoreUploaded_t e ) =>
+			new LeaderboardUpdate
+			{
+				Score = e.Score,
+				Changed = e.ScoreChanged == 1,
+				NewGlobalRank = e.GlobalRankNew,
+				OldGlobalRank = e.GlobalRankPrevious
+			};
+	}
+}