Fix recording balancetransaction details (eg. available_on) on FinancialTrxn when payment is completed immediately (eg. Contribution page) and add tests to cover this scenario

smartyv2-1.0.1 does not work on 5.59 because of https://github.com/civicrm/civicrm-core/commit/7168793c03ef57c06bbfe45f5ff873ebb3657806

Further migration to propertyBag for Stripe doPayment and make getDescription accessible for child classes