NamedDevFailedList: fix logic in call_failed() method:

Yury Matveevrequested to merge
bugfix/issue-1361-error-handling-for-async-attribute-writing into main

Closes #1361 (closed)

The reason, why err was not set was incorrect logic in NamedDevFailedList.call_failed() method: it told call was failed when err_list was empty. We must check either err_list is not empty of errors are not empty

Also added Catch2 tests. Note, that tests are working only for IDL>=3 due to Connection::Cb_WriteAttr_Request realization

Edited by Yury Matveev

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