Compile-time option to allow some prompts remember the input

Define EDIT_GETLIN to make the tty, X11, and Qt4 windowports to
remember the input strings for wishing and annotation.

win/Qt4/qt4streq.cpp

@@ -83,6 +83,9 @@ bool NetHackQtStringRequestor::Get(char* buffer, int maxchar)
 	resize(fontMetrics().width(prompt.text())*2+50,fontMetrics().height()*4);
     }
 
+#ifdef EDIT_GETLIN
+    input.setText(buffer);
+#endif
     centerOnMain(this);
     show();
     input.setFocus();