Use separate XDRs for top-up transaction for service wallets

Ticket Number	BA-2915
Project goal	Use separate tables in the DB to store XDRs for top-up transactions for service wallet. Such transactions should influence on service wallet balance only, account's/customer's balances or unpaid invoices should be kept untouched.
Target Build	MR61-0, MR60-1
Area	BillingAdmin

Additional Info

Business Requirements

Implementation

Testing