QBJS Swimming fish with Kelp

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The more I think about it the more inclined I am to change the way this is working in the next release of QBJS to increase compatibility with QB64.  I think instead of extending the array to also support associative arrays (dictionaries), I'll pull this functionality out into a new type called Dictionary.  Then I can implicitly convert any index values passed to an array to an integer, just as in QB64.