Core: Advance logging

- Log guid in SmartScript::IsSmart and SmartScript::IsSmartGO
- Prevent false positive for missing game_graveyard_zone data for battlegrounds
DB: Fishing loot for Pit Of Saron

http://www.elsanglin.com/forums/topic/pit-of-saron
DB/SAI: Assign SmartAI and remove needless SmartScript (See core script)