Add support for plugins (and specifically GPRS encryption plugins)
diff --git a/include/osmocore/plugin.h b/include/osmocore/plugin.h
new file mode 100644
index 0000000..98f9b56
--- /dev/null
+++ b/include/osmocore/plugin.h
@@ -0,0 +1,6 @@
+#ifndef _OSMO_PLUGIN_H
+#define _OSMO_PLUGIN_H
+
+int plugin_load_all(const char *directory);
+
+#endif