Updated Automate UI export to use backup with zip format.
Updated Automate UI export to use backup with zip format.

Rewrote MiqAeDatastore unit test for new automate zip format.
Test validates more counts than previous version and skips unneeded "should_not raise_error" export test.
(transferred from ManageIQ/manageiq@32fd75faef4e0cbc66402f8e2599215e601524a5)

ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic