Summary:
  - Trace : check child txns for printing trace
  - convert LOG(INFO) to VLOG(1) in src/yb/master/object_lock_info_manager.cc
  - Add a LongOperationTracker to ObjectLockedBatchEntry::Lock
Jira: DB-16059

Test Plan: yb_build.sh fastdebug --cxx-test object_lock-test

Reviewers: bkolagani, rthallam, #db-approvers

Reviewed By: rthallam, #db-approvers

Subscribers: svc_phabricator, ybase

Differential Revision: https://phorge.dev.yugabyte.com/D43007