blockchain/state_manager: add appropriate state transition aesthetics

[q9f]

Summary of changes

Changes introduced in this pull request:

• adds functionality to the state manager to reveal five trees on the info level tracer whenever desired
• prints five ascii-formatted trees that resemble the forest logo upon successful state migration nv18 and nv19

Reference issue to close (if applicable)

🌲 for #2775

Other information and links

Change checklist

• I have performed a self-review of my own code,
• I have made corresponding changes to the documentation,
• I have added tests that prove my fix is effective or that my feature works (if possible),
• I have made sure the CHANGELOG is up-to-date. All user-facing changes should be reflected in this document.

[CLAassistant]

All committers have signed the CLA.

[LesnyRumcajs]

I like it!