[z2702] Implement script support for quest 5203

Thanks to @grz3s for providing the data

(based on commit SD2[3023] - 54d55ad)

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

(based on commit SD2-TBC[s2793] - 78d323d)

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