=== Split osmo-gbproxy from osmo-sgsn ===

Adjust the build system, packaging etc. to split osmo-gbproxy into its
own git repository. Remove tests and configs that aren't related to
osmo-gbproxy.

Related: OS#4992
diff --git a/src/vty.h b/src/vty.h
new file mode 100644
index 0000000..d2e3d9a
--- /dev/null
+++ b/src/vty.h
@@ -0,0 +1,9 @@
+#pragma once
+
+#include <osmocom/vty/command.h>
+
+enum bsc_vty_node {
+	GBPROXY_NODE = _LAST_OSMOVTY_NODE + 1,
+	SGSN_NODE,
+	GTPHUB_NODE,
+};