Console : allow to know if the TTY is enabled (or if the console is called from pipe)

src/Console.php

@@ -993,6 +993,13 @@ class Console
   }
   // }}}
 
+   /** Return true if the TTY is enabled, or false if the program is called from pipe
+     */
+   public function isTTY()
+   {
+     return !! $this->initSttyState;
+   }
+
   /** Tokenize the provided line and aggragate if there is single or double
     * quotes.
     * Trim the spaces