feat: decouple bank from simapp

[tac0turtle]

Description

Closes: #12083

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[aaronc]

You should be able to replace all the lines below with something like:

depinject.Inject(testutil.AppConfig, &suite.BankKeeper, &appCodec, &suite.AccountKeeper, ...)

[julienrbrt]

Closing in favor of #12398