[10679] New table npc_vendor_template for comon item data for diff vendors.

In vendor list show own vedor items + template ites if any.
Vendor template item lists selected by id stored in creature_template.vendor_id

sql/updates/10679_02_mangos_creature_template.sql

@@ -0,0 +1,4 @@
+ALTER TABLE db_version CHANGE COLUMN required_10679_01_mangos_npc_vendor_template required_10679_02_mangos_creature_template bit;
+
+ALTER TABLE creature_template
+  ADD COLUMN vendor_id mediumint(8) unsigned NOT NULL default '0' AFTER equipment_id;