[10469] Rename some opcode handler to better follow used naming style

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автор: VladimirMangos

m src/game/ChannelHandler.cpp

m src/game/CharacterHandler.cpp

m src/game/GMTicketHandler.cpp

m src/game/ItemHandler.cpp

m src/game/MiscHandler.cpp

m src/game/MovementHandler.cpp

m src/game/Opcodes.cpp

m src/game/PetHandler.cpp

m src/game/QueryHandler.cpp

m src/game/WorldSession.h

m src/shared/revision_nr.h

[10469] Rename some opcode handler to better follow used naming style

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