Feature: Log updates of the ValidatorHistoryAccount on diffs

[buffalu]

Is your feature request related to a problem? Please describe.
For indexing purposes and for blockahin explorers like Dune, it would be nice to log the state of a ValidatorHistoryAccount on every update.

Describe the solution you'd like
Any update that causes a change in a ValidatorHistoryAccount for a given epoch is logged. This logs can use emit! or even better, emit_cpi!, which doesn't suffer from log truncation inside RPCs.

Additional context
Ensure that any logs are compatible with most block explorers and Dune!

Note
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[witwiki]

Hey @buffalu,
Can I attempt this issue?

[buffalu]

Hey @buffalu, Can I attempt this issue?

yes please! assigned

[buffalu]

please stop by discord in #stakenet channel if you have questions or need help

[bcerecer]

Hi @buffalu, can I implement this?

[witwiki]

hey @buffalu, please unassign me from this issue so @bcerecer can implement it.