[3012] Implement script support for quest 2845

Thanks to @grz3s for providing the data
[3013] Implement script support for quests 24849 and 24851

Please note that the spawn location and dialogue requires database support

Close #105

Signed-off-by: Xfurry <xfurry@scriptdev2.com>

Conflicts:
	scripts/world/areatrigger_scripts.cpp
[3014] Implement script support for quests 13300 and 13302

Close #107

Signed-off-by: Xfurry <xfurry@scriptdev2.com>

Conflicts:
	scripts/northrend/icecrown.cpp
	sql/mangos_scriptname_full.sql
[3015] Implement script support for quest 12644

Close #103

Signed-off-by: Xfurry <xfurry@scriptdev2.com>

Conflicts:
	scripts/northrend/sholazar_basin.cpp