Created stable vars for hashmaps and tokenPk and changed name symbol and query methods#1
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SuddenlyHazel
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May 22, 2021
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🤯 - this is the communities now!
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The HashMaps for owners, balances, tokenApprovals, operatorApprovals and tokenPk were not set as stable so those values would have been lost during a canister upgrade. I also changed the symbol and name functions to be query methods since they do not rely on consensus. I also changed operatorApprovals from a HashMap of HashMaps to a HashMap of arrays since HashMaps are compatible with stable vars.