Describe the solution you'd like
Extend the Kyverno CLI to cover generate policies (currently only validate and mutate policies are covered via the kyverno test command)

Additional context
For LFX mentorship candidates interested in this project, here are a few ways to get started and learn more:

1. Install Kyverno in a cluster and learn about the different policy rule types (https://kyverno.io/docs) like validate, mutate, and generate.
2. Install the Kyverno CLI and get familiar with the test command.
3. Try to contribute a new test case in the Kyverno policy samples library.

The project will involve extending the test command for generate policy rules, adding more test cases for the samples, and automating execution of tests.