eliminate the usage of ContainerOp in testcases and
update the testcase accordingly, including filenames starting
with `o` to `u`
Signed-off-by: Yihong Wang <yh.wang@ibm.com>
* Now including logs for 'finally' tasks
* Add env var for SLEEP_BETWEEN_TEST_PHASES
* Add 'retry.yaml' to ignored tests
* Make node_selector more general
* Use pipelinerun status.conditions[].reason instead of .type
* Treat status "Completed" as "Succeeded"