Add openconnect_get_version() function

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

library.c

@@ -131,3 +131,8 @@ int openconnect_parse_url (struct openconnect_info *vpninfo, char *url)
 	return internal_parse_url (url, NULL, &vpninfo->hostname,
 				   &vpninfo->port, &vpninfo->urlpath, 443);
 }
+
+const char *openconnect_get_version (void)
+{
+	return openconnect_version;
+}

openconnect.h

@@ -116,7 +116,7 @@ void openconnect_clear_https_ctx (struct openconnect_info *);
 
 void openconnect_reset_ssl (struct openconnect_info *vpninfo);
 int openconnect_parse_url (struct openconnect_info *vpninfo, char *url);
-
+const char *openconnect_get_version(void);
 
 typedef int (*openconnect_validate_peer_cert_fn) (struct openconnect_info *vpninfo,
 						  struct x509_st *cert, const char *reason);