New Content: Isovalent track

[ryanj]

Is your feature request related to a problem? Please describe.
Add a new track covering isovalent

Describe the solution you'd like
Make a copy of the 4.12 image and share the resulting folder and contributor process

Next Steps:

• @ryanj Create a new track for isovalent. Share the resulting folder
• Add Operator install steps
  https://isovalent.com/blog/post/2022-03-openshift/
• Make sure that hubble and cilium CLI tools are available in the VM
  https://github.com/cilium/cilium-cli
  https://github.com/isovalent/hubble-releases/releases/tag/v0.11.1-cee.1
• Investigate graphana support
• Add an example demo or application
  https://docs.cilium.io/en/latest/gettingstarted/demo/