Created new Hints class. Implemented Hints.Display method. Added option to SettingsMenu to enable/disable hints in-game.

SceneManager/Hints.cs

@@ -0,0 +1,17 @@
+using Rage;
+
+namespace SceneManager
+{
+    class Hints
+    {
+        public static bool Enabled { get; set; } = SettingsMenu.hints.Checked;
+
+        public static void Display(string message)
+        {
+            if (Enabled)
+            {
+                Game.DisplayNotification($"{message}");
+            }
+        }
+    }
+}