REORG: ssl: move the CLI 'cert' functions to src/ssl_ckch.c

Move the 'ssl cert' CLI functions to src/ssl_ckch.c.
diff --git a/include/proto/ssl_ckch.h b/include/proto/ssl_ckch.h
index cff3095..d0df9b9 100644
--- a/include/proto/ssl_ckch.h
+++ b/include/proto/ssl_ckch.h
@@ -53,7 +53,9 @@
 /* ckch_inst functions */
 void ckch_inst_free(struct ckch_inst *inst);
 struct ckch_inst *ckch_inst_new();
-
+int ckch_inst_new_load_multi_store(const char *path, struct ckch_store *ckchs,
+                                   struct bind_conf *bind_conf, struct ssl_bind_conf *ssl_conf,
+                                   char **sni_filter, int fcount, struct ckch_inst **ckchi, char **err);
 int ckch_inst_new_load_store(const char *path, struct ckch_store *ckchs, struct bind_conf *bind_conf,
                              struct ssl_bind_conf *ssl_conf, char **sni_filter, int fcount, struct ckch_inst **ckchi, char **err);