(WIP) Autogrow kuttl

[tjmoore4]

Checklist:

• [x] Have you added an explanation of what your changes do and why you'd like them to be included?
• [ ] Have you updated or added documentation for the change, as applicable?
• [x] Have you tested your changes on all related environments with successful results, as applicable?
  • [ ] Have you added automated tests?

Type of Changes:

• [ ] New feature
• [ ] Bug fix
• [ ] Documentation
• [x] Testing enhancement
• [ ] Other

What is the new behavior (if this is a feature change)?

• [ ] Breaking change (fix or feature that would cause existing functionality to change) Adds a simple KUTTL E2E test for the pgData volume auto-grow feature. This test performs once volume expansion and verifies the appropriate Event was triggered.

Note: Will be rebased and the branch updated before merge!

Other Information: Issue: PGO-1282