kwok and perf updates

[jbusche]

Issue link

https://github.com/project-codeflare/multi-cluster-app-dispatcher/issues/625

What changes have been made

• Fixed the KWOK install instructions to the latest (easier) method
• Fixed the Items problem so that appwrappers launch
• Changed to a while loop that allows as few as 1 appwrapper or fake node to work now (didn't work before with the for loop)

• Verification steps

  Testing both from a MAC and on my OpenShift cluster

Checks

• [ ] I've made sure the tests are passing.
• Testing Strategy
  • [ ] Unit tests
  • [x] Manual tests
  • [ ] Testing is not required for this change

[openshift-ci[bot]]

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[jbusche]

/retest