Can you add interest to the banking function?

[DreamMiu]

Context

This change will make guild plugins more important and accessible to more players!

This definitely increases player activity/gameplay, which is a big benefit for the server

Possible Implementation

yml in config.yml to add the interest settlement time, in tiers.yml to add each level of interest. My idea is that max-bank-balance also includes interest, after the bank account is full, there will be no interest, and he can set 0% interest but not turn on this function （My English is poor, the above content is google translation）