Payments API

• Added new functionality liquidity accounts with two new endpoints
  • Getting a liquidity account https://docs.pingpayments.com/reference/v1getliquidityaccount
  • Creating a liquidity account https://docs.pingpayments.com/reference/v1createliquidityaccount

Liquidity accounts can be used for making credit payments to merchants. Guidelines and use cases will be created in the documentation during 2024 when the functionality has matured.