[c3055] Implement script support for quest 12027

Thanks to @grz3s for providing the data

(based on commit SD2[3055] - 4d90d31)

Signed-off-by: Xfurry <xfurry@scriptdev2.com>
[c3056] Fix some Ulduar issues and implement achievements 2996 and 2997

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

(based on commit SD2[3057] - faddf52)

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