Add support for a simple telnet expect set of APIs

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

src/Makefile.am

@@ -14,8 +14,8 @@ libite_la_SOURCES     = chomp.c		copyfile.c			\
 			reallocarray.c	rsync.c				\
 			strlcpy.c 	strlcat.c 	strtonum.c	\
 			strdupa.h	strndupa.h	strnlen.h	\
-			strmatch.c	yorn.c				\
-			tempfile.c	which.c				\
+			strmatch.c	telnet.c	tempfile.c	\
+			yorn.c		which.c				\
 			lite.h		strlite.h			\
 			queue.h		tree.h