Create the LedgerService smart contract
As per wiki specification.
This is mostly cleaning up and renaming the existing payment service contract and removing the "payment" parts
The 17.0 major release is coming on May 16, 2024! This version brings many exciting improvements to GitLab, but also removes some deprecated features. We are introducing three breaking change windows during which we expect breaking changes to be deployed to GitLab.com. You can read more about it on our blogpost. The second breaking change window begins 2024-04-29 09:00 UTC and ends 2024-05-01 22:00 UTC.
As per wiki specification.
This is mostly cleaning up and renaming the existing payment service contract and removing the "payment" parts