SCRIPTS: A Shantotto Ascension 1-3

Some work I'd done awhile back on A Shantotto Ascension awhile back. Provides a basic implementation of missions 1-3, including the variations of the cutscenes depending on where you zone in. Require ENABLE_ASA in settings.lua. 

I had started working on mission 4 awhile back and ended up stalling out due to 2 things - not knowing which mob id of the avatars were the right ones to code the special behaviors for this mission, and Leviathan still being completely screwed up with the entity update issue. If someone wants to help me out with that then I have mission 4 partially coded as well that I could then submit

On mission 2 as its currently coded, only the poison set works, but that also seems to be the only one it gives currently as well. With some experimenting I found that depending on the parameter send into the cutscene, that affects which set gets displayed for the player to craft in the initial dialog, but I couldnt figure out how it works downstream when you turn in the quest. Poison is the default value, so that one works. If someone wants to compare the behavior to retail, its probably easy to fix the rest.