[LUA] Dealer Moogle: always return table for item selection

[jamesbradleym]

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• [x] I understand that if I do not agree to the following points by completing the checkboxes my PR will be ignored.
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• [x] I have read and understood the Contributing Guide and the Code of Conduct.
• [ ] I have tested my code and the things my code has changed since the last commit in the PR and will test after any later commits.

What does this pull request do?

• Returns a table from getItemSelection in dealer_moogle.lua
• Modifies debugInfo to accept items and uses the first value for messageSpecial which is looking for a single value, only entering this method if #items > 0
• uses the first value for messageBasic which is looking for a single value

Steps to test these changes

finish event with dealer moogle

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