v1.2.0-kata-ci

Rebase the CI to the current mainline.

• Extensive changes since v1.1.7:
  • Fix pod privilege issues going forward
  • Improved robustness, particularly in case of failure
  • Improved reliability of reporting in the case of run failures
  • More reliable log collection
  • All pod-side workloads converted to Python:
    • cpusoaker will give lower performance numbers due to use of Python vs. perl; results cannot be compared against v1.1
    • memory consumption will likely be lower with cpusoaker test
  • Pod monitoring is more efficient
  • Support for Multus
  • Support ARM
  • Image tag is separate from the mainline image to allow future development without impacting CI.

Except as noted (cpusoaker performance results), this release should be compatible with v1.1.7 for purposes of CI.