Suggestion: Try to use account.getCachedBalance() when calculating money in economy

[Goosius1]

Is your feature request related to a problem? Please describe.

• With current code, the method account.getHoldingBalance() is used to calculate money in economy
• This is done on server startup, and towny new day........but it is a slow thing, especially on big servers

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• Look into using account.getCachedBalance()
• FYI I did try this before but it gave me values which were too high, so debugging might be needed etc.

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