feat(strategy-tests): log private keys of newly created identities

[pauldelucia]

Issue being fixed or feature implemented

When new identities are created in strategy tests, log the private keys so that we can use them later

What was done?

How Has This Been Tested?

TUI

Breaking Changes

Checklist:

• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have added or updated relevant unit/integration/functional/e2e tests
• [x] I have added "!" to the title and described breaking changes in the corresponding section if my code contains any
• [x] I have made corresponding changes to the documentation if needed

For repository code-owners and collaborators only

• [ ] I have assigned this pull request to a milestone