[E2E Enchancement] define command line flags for different cleanup granularity

[YaoZengzeng]

What would you like to be added:

Implement more command line flags for different cleanup granularity to make it more convenient for local run and debug flaky test case.

Now after running test/e2e/run_test.sh, infra like k8s, istio and Kmesh will not cleanup, but test applications will.

So add command line flag to implement such as:

1. Cleanup all components: this seems simple, just use kind to delete the testing k8s cluster.
2. Don't cleanup test applications: we can use istio.test.nocleanup which is the flag of istio integration framework to control it.

And more if it's necessary.

[YaoZengzeng]

/assign @noobwei

[kmesh-bot]

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In response to this:

/assign @noobwei

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