DB/Misc: Couple more fixes

closes #13112
closes #13115
Scripts/CoS: implemented Infinite Corruptor, improvements in instance script and Meathook converted to BossAI

Guardian of Time should have some text, but I have not found anything in sniff. Also the whole event needs to be rewritten and improved.
Remove mount vendor cpp script
Merge pull request #12927 from MitchesD/misc_3

Scripts/CoS: implemented Infinite Corruptor, improvements in instance sc...
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Merge branch 'master' of https://github.com/TrinityCore/TrinityCore into ghbb

Conflicts:
	src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/boss_infinite_corruptor.cpp
	src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/culling_of_stratholme.cpp
	src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/culling_of_stratholme.h
	src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/instance_culling_of_stratholme.cpp
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