install gtp-tunnel and gtp-link tools

This eases quick setup for demonstration purposes.

Change-Id: I674c463989bc1529bfe132b7ec0df7a0052169df
diff --git a/debian/control b/debian/control
index 3128f3e..5c8ed03 100644
--- a/debian/control
+++ b/debian/control
@@ -43,3 +43,12 @@
 Depends: libgtpnl0 (= ${binary:Version}),
          ${misc:Depends}
 Description: Debug symbols for Linux kernel GTP-U netlink library
+
+Package: libgtpnl-tools
+Architecture: any
+Multi-Arch: same
+Section: net
+Priority: extra
+Depends: libgtpnl0 (= ${binary:Version}),
+         ${misc:Depends}
+Description: Tools to manage gtp interfaces and tunnels.
diff --git a/debian/libgtpnl-tools.install b/debian/libgtpnl-tools.install
new file mode 100644
index 0000000..49983e4
--- /dev/null
+++ b/debian/libgtpnl-tools.install
@@ -0,0 +1,2 @@
+/usr/bin/gtp-link
+/usr/bin/gtp-tunnel