* fix(e2e): Create next namespace if one exists
Do not error out if the namespace to run e2e into exists, try creating
next one in row. Retry at 20 next namespaces, before erroring out.
* Tag plugin tests as !serving and !eventing
* Debug: Create a test namespace to see if its skipped
* Revert "Debug: Create a test namespace to see if its skipped"
This reverts commit 8b45fcef4d.
* Refactor file utils from e2e tests to test lib
* (refactor) address the e2e extract / refactor of issue #763
* various updates to address reviewers feedback
* renamed lib/test/integration to lib/test and package to test
Michal Vinkler