refactor: balance initialization

[hitwill]

re-use code to reduce probability of mistakes

[twilson63]

What if you don't want your total supply awarded to the process balance? what if you want to enable a mint process?

[hitwill]

What if you don't want your total supply awarded to the process balance?

A good point. But I think it would be the same with the current code:

Balances = Balances or { [ao.id] = utils.toBalanceValue(10000 * 10 ^ Denomination) }
TotalSupply = TotalSupply or utils.toBalanceValue(10000 * 10 ^ Denomination)

Or with the proposed change

TotalSupply = TotalSupply or utils.toBalanceValue(10000 * 10 ^ Denomination)
Balances = Balances or { [ao.id] = TotalSupply }

Where the coder needs to update balances to

Balances = Balances or {}

The proposed change is tiny, but I feel it keeps the code DRY and reduces that small chance of an error