TODO: Investigate on these Darnassus NPCs

[geo-tp]

Describe what needs to be implemented or enhanced

https://db.thealphaproject.eu/index.php?action=show_creature&id=4157
https://db.thealphaproject.eu/index.php?action=show_creature&id=4176
https://db.thealphaproject.eu/index.php?action=show_creature&id=4174
https://db.thealphaproject.eu/index.php?action=show_creature&id=4179
https://db.thealphaproject.eu/index.php?action=show_creature&id=4224
https://db.thealphaproject.eu/index.php?action=show_creature&id=4237
https://db.thealphaproject.eu/index.php?action=show_creature&id=3957
https://db.thealphaproject.eu/index.php?action=show_creature&id=3966

All those should probably be spawned in Darnassus for 0.5.3 (probably trade disctrict for merchant, craftmen disctrict for trainers).

Expected end result
Find some evidences for spawn these guys

[geo-tp]

Kitari Farseeker - Cartography Trainer
https://db.thealphaproject.eu/index.php?action=show_creature&id=4157

this could be the cartography trainer house (exists in 0.5.3 with no assets), given that we can see the cartography assets in version 0.5.5, despite this trainer does not appear on any listing that we have so it may not be spawn