[z2697] Implement script support for quests 5944 and 5862 (ending scene)

Please note that there are a few quest details which might need to be fixed (such as the mount id)

(based on commit SD2[3008] - b238aeb)

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

(based on commit SD2-TBC[s2786] - 20aa8b3)

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