Scripts/Pandaria: Implement Protectors of the Endless encounter (normal difficulty)

[aquadeus]

Changes proposed:

• Implement Protectors of the Endless encounter

Tests performed:

Tested in-game

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

• Trash npcs have visual spells broken.
• Npc 60621 (corrupted orb) has a periodic spell (117217) with a trigger spell (117230) that has SPELL_EFFECT_APPLY_AREA_AURA_PARTY and is not affecting bosses.
• When one of the protectors die it casts spell 117052, but the triggered spell (127731, is a visual orb) is not casted to the other protectors. also when one dies, one of the others alive should talk (the protector who talks is choosen randomly).
• Spell 122851 should make the boss talks to the victim when is casted, but is not casted properly (idk why).