[9501] Implement item limit category inventory mode.

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<pre>m src/game/Bag.cpp
m src/game/Bag.h
m src/game/DBCEnums.h
m src/game/DBCStructure.h
m src/game/DBCfmt.h
m src/game/Group.cpp
m src/game/ItemHandler.cpp
m src/game/Level3.cpp
m src/game/LootHandler.cpp
m src/game/Player.cpp
m src/game/Player.h
m src/game/Spell.cpp
m src/game/SpellAuras.cpp
m src/game/SpellEffects.cpp
m src/game/debugcmds.cpp
m src/shared/revision_nr.h

[9501] Implement item limit category inventory mode.

* Now expected item limit categories (for example for item 5513 and related)
correctly limited by its amount in inventory.
* Provide and use additional arg in SendEquipError for alt. way get affected
item prototype. This let send to function item id and prevent crash client at
limit category equip errors that required item prototype data.</pre>



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