[8237] Apply attack power multiplier to creature bonus attackpower.

Note: mindmg/maxdmg in creature_template expected including attackpower part in its.
attackpower field only show part of attackpower not affected by AP multiplier.

Thanks also to Seizer for take part in reseach and patch review.

Signed-off-by: VladimirMangos <vladimir@getmangos.com>

sql/updates/8237_01_mangos_creature_template.sql

@@ -0,0 +1,4 @@
+ALTER TABLE db_version CHANGE COLUMN required_8227_01_mangos_spell_proc_event required_8237_01_mangos_creature_template bit;
+
+UPDATE creature_template
+  SET mindmg = ROUND(mindmg + attackpower), maxdmg=ROUND(maxdmg+attackpower);