[FIXED] [NW][Amarth] Necrotic breath spell queue issues

[FreakzStaff]

**Description of the bug**
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* when necrotic breath gets cast he follow's the tank and when the cast finishes he instantly snaps to the intended position making it unpredictable to dodge

* after necrotic breath has been added to the spell queue the boss will cast necrotic bolt and the moment the bolt cast is finished or interrupted he will instantly cast necrotic breath



** how it should be**

* When necrotic breath gets cast and the boss chooses a position and direction he should instantly turn to that direction and start the cast.

* after necrotic bolt is cast there should be a delay before he starts casting necrotic breath

**additional info**
https://www.wow-freakz.com/spells.php?spell=320171 (wowhead link)
https://www.wow-freakz.com/spells.php?spell=333488 (wowhead link) ( the cast )
https://www.wow-freakz.com/spells.php?spell=333489 (wowhead link) ( the channeled spell)