SSDM-13578 : 2PT : Database and V3 Implementation - integration tests - make the lock list JSON deserialization work (List.of which was used before was returning an immutable list that didn't have a default constructor and made the recovery process fail)

SSDM-13578 : 2PT : Database and V3 Implementation - use proxies to simulate failures in the integration tests

SSDM-13578 : 2PT : Database and V3 Implementation - make sure all the resources are properly released

SSDM-13578 : 2PT : Database and V3 Implementation - tests for global switch to enabled/disable transactions

SSDM-13578 : 2PT : Database and V3 Implementation - add global switch to enabled/disable transactions