Banking rework

[NataKilar]

Reworking the banking system upstream

• Move banking accounts to network accounts
• Adding "banking mainframe" network machine to hold funds tied to accounts
• Allow options for banking mainframes to require a fractional reserve/pay out interest/etc.
• Tie EFTPOS machines to networks to allow for internetwork money transfer.
• Payroll machine which regularly transfers money from one account to another, tied to hourly pay etc.
• Add a bank mainframe to Outreach to allow players to have a constant safe place to store their money, possibly with a negative interest rate.