import VTY code from zebra/quagga (from my cardshell project)

diff --git a/src/vty/cardshell.h b/src/vty/cardshell.h
new file mode 100644
index 0000000..d963a38
--- /dev/null
+++ b/src/vty/cardshell.h
@@ -0,0 +1,5 @@
+#define QUAGGA_PROGNAME	"OpenBSC"
+#define QUAGGA_VERSION	"0.01"
+#define QUAGGA_COPYRIGHT "Harald Welte <laforge@gnumonks.org>"
+#define CONFIGFILE_MASK 022
+#define SYSCONFDIR "/usr/local/etc"