add configuration options

Source/Editor/Utilities/Units.cs

@@ -6,4 +6,16 @@ public class Units
     /// Factor of units per meter.
     /// </summary>
     public static readonly float Meters2Units = 100f;
+
+    // the next two bools could be cached values in the user preferences
+
+    /// <summary>
+    /// Set it to false to always show game units without any postfix
+    /// </summary>
+    public static bool UseUnitsFormatting = true;
+
+    /// <summary>
+    /// If set to true, the distance unit is chosen on the magnitude, otherwise it's meters
+    /// </summary>
+    public static bool AutomaticUnitsFormatting = true;
 }