ConsoleBuf: Add Manager convenience method for UTF-8 pipes

Change-Id: Ib9f72534e2715ca6230b212231e4133e29bcab31

ConsoleBuf.hxx.in

@@ -50,6 +50,15 @@ public:
 
     BasicConsoleBuf<CharT, Traits>* GetConsoleBuf() { return m_consolebuf; }
 
+    void SetUTF8Pipes()
+    {
+      if (m_consolebuf) {
+        m_consolebuf->input_pipe_codepage = CP_UTF8;
+        m_consolebuf->output_pipe_codepage = CP_UTF8;
+        m_consolebuf->activateCodepageChange();
+      }
+    }
+
     ~Manager()
     {
       if (m_consolebuf) {