Create 2018_10_14_02_world_Ixallon_SAI.sql

[ghost]

Add SAI for https://www.wowhead.com/npc=118930/ixallon-the-soulbreaker

Changes proposed:

• Add SAI for Kil'jaeden miniboss Ixallon the Soulbreaker
• Use Run Script for flexibility.
• Use new SAI action CAST_OFFSET.

Issues addressed: Closes # (insert issue tracker number)

Tests performed: (Does it build, tested in-game, etc.)

Known issues and TODO list: (add/remove lines as needed)

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