added some functions of input-buffer.scm to module-exports

scheme/ncurses-packages.scm

@@ -341,6 +341,17 @@
 
 
 	  buffer
+	  buffer-text
+	  buffer-pos-line
+	  buffer-pos-col
+	  buffer-pos-fin-ln
+	  buffer-pos-y
+	  buffer-pos-x
+	  buffer-num-lines
+	  buffer-num-cols
+	  buffer-can-write
+	  buffer-history-pos
+	  make-buffer
 	  input
 	  print-command-buffer
 	  cursor-right-pos