Updated more pets, and statistics function (work in progress)

Updated more pet rotations
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Statistics (work in progress)
MPB_STATS_TABLE = {}
MyPetBattle.addStats(key,value), key: e.g. string, value: integer
MyPetBattle.printStats(), will print the MPB_STATS_TABLE

Usage
MyPetBattle.addStats(itemLink,quantity)

Right now the stats will reset after relog and reload
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Added help slash command
/MyPetBattle help