Optionalbalancesbalances is an array containing the balances of all the accounts.
Optionaldenom_denom_metadata defines the metadata of the differents coins.
Optionalparamsparams defines all the paramaters of the module.
Optionalsupplysupply represents the total supply. If it is left empty, then supply will be calculated based on the provided balances. Otherwise, it will be used to validate that the sum of the balances equals this amount.
GenesisState defines the bank module's genesis state.