Add support for Authorize.net CIM gateway's getTransactionDetails request

[joeyparis]

Adds support Authorize.net CIM's getTransactionDetails method defined here: https://developer.authorize.net/api/reference/index.html#transaction-reporting-get-transaction-details

The method has worked for me without error in my own environment, but I am having trouble wrapping my head around how the remote/unit testing suites work making it difficult for me to write tests for this added functionality, let alone proper tests that confirm everything. Any guidance or assistance on testing would be greatly appreciated!

[curiousepic]

Marking this "of interest" before a cleanup of stale PRs

[github-actions[bot]]

To provide a cleaner slate for the maintenance of the library, this PR/Issue is being labeled stale after 60 days without activity. It will be closed in 14 days unless you comment with an update regarding its applicability to the current build. Thank you!