Issue 497

[quanvo87]

Description

Add transactional list operations for Lists.

Motivation and Context

#497

How Has This Been Tested?

Added unit tests for all new operations and passing.

Found occasional test failures in old tests: TestListsPart3.swift -> test_blpopBrpopAndBrpoplpushEmptyLists TestMoreCommands.swift -> test_expiration TestTransactionsPart3.swift -> test_expiration

Checklist:

• [ ] I have submitted a CLA form
• [ ] If applicable, I have updated the documentation accordingly.
• [x] If applicable, I have added tests to cover my changes.