Fixed SteamGame so it handles copies

Fixed SteamGame so it handles copies, and also
fixed the SteamLibrary so it works properly and
works. HeliosPlus now will run shortcuts and
load the game perfectly!

HeliosPlus/GameLibraries/SteamLibrary.cs

@@ -16,7 +16,7 @@ namespace HeliosPlus.GameLibraries
     {
         #region Class Variables
         // Common items to the class
-        private static List<SteamGame> _allSteamGames = null;
+        private static List<SteamGame> _allSteamGames = new List<SteamGame>();
         private static string steamAppIdRegex = @"/^[0-9A-F]{1,10}$";
         private static string _steamExe;
         private static string _steamPath;