Fixed Logging API in CLI (#695)

The issue was that methods that only receive a message were treating it
as format and would then report an error if the message contained a '{'

src/NuGetForUnity.Cli/Fakes/Debug.cs

@@ -21,34 +21,43 @@ internal static void LogFormat(string format, params object[] args)
             Console.WriteLine(format, args);
         }
 
-        internal static void Log(string format, params object[] args)
+        internal static void Log(string message)
         {
-            Console.WriteLine(format, args);
+            Console.WriteLine(message);
         }
 
-        internal static void LogWarning(string format, params object[] args)
+        internal static void LogWarning(string message)
         {
             var oldForegroundColor = Console.ForegroundColor;
             Console.ForegroundColor = ConsoleColor.DarkYellow;
-            Console.WriteLine(format, args);
+            Console.WriteLine(message);
             Console.ForegroundColor = oldForegroundColor;
         }
 
         internal static void LogWarningFormat(string format, params object[] args)
         {
+            var oldForegroundColor = Console.ForegroundColor;
+            Console.ForegroundColor = ConsoleColor.DarkYellow;
             Console.WriteLine(format, args);
+            Console.ForegroundColor = oldForegroundColor;
         }
 
-        internal static void LogError(string format, params object[] args)
+        internal static void LogError(string message)
         {
             HasError = true;
-            Console.Error.WriteLine(format, args);
+            var oldForegroundColor = Console.ForegroundColor;
+            Console.ForegroundColor = ConsoleColor.DarkRed;
+            Console.Error.WriteLine(message);
+            Console.ForegroundColor = oldForegroundColor;
         }
 
         internal static void LogException(Exception e)
         {
             HasError = true;
+            var oldForegroundColor = Console.ForegroundColor;
+            Console.ForegroundColor = ConsoleColor.DarkRed;
             Console.Error.WriteLine(e.ToString());
+            Console.ForegroundColor = oldForegroundColor;
         }
 
         [Conditional("DEBUG")]