add vty call show asciidoc: generate a documentation for counters

For each counter group a ascii doc table is generated
containing all single counter with a reference to a section to
add additional information to the counter

Change-Id: Ia8af883167e5ee631059299b107ea83c8bbffdfb
Reviewed-on: https://gerrit.osmocom.org/70
Reviewed-by: Harald Welte <laforge@gnumonks.org>
Tested-by: Harald Welte <laforge@gnumonks.org>
diff --git a/include/osmocom/vty/command.h b/include/osmocom/vty/command.h
index 9a02575..135ef2f 100644
--- a/include/osmocom/vty/command.h
+++ b/include/osmocom/vty/command.h
@@ -379,6 +379,8 @@
 char *host_config_file();
 void host_config_set(const char *);
 
+char *osmo_asciidoc_escape(const char *inp);
+
 /* This is called from main when a daemon is invoked with -v or --version. */
 void print_version(int print_copyright);