feat: allow separate accounting store

[ralph-pichler]

related to #968

This change is 

[Eknir]

Why would you want to do this?

[ralph-pichler]

@Eknir so you can reset statestore / localstore without resettting private key / chequebooks.

[Eknir]

that's useful 👍

[ldeffenb]

@Eknir so you can reset statestore / localstore without resettting private key / chequebooks.

But isn't the checkbook address stored in statestore?

[mrekucci]

Reviewed 6 of 6 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @ralph-pichler)

---

pkg/node/statestore.go, line 40 at r1 (raw file):

		return ret, nil
	}
	return leveldb.NewStateStore(filepath.Join(dataDir, "accountingstore"), log)

Would be nice to check the dataDir validity before passing it, e.g.:

dir, err := os.Stat(dataDir)
if err != nil {
	return fmt.Errorf("failed to open directory, error: %w", err)
}
if !dir.IsDir() {
	return fmt.Errorf("%q is not a directory", dir.Name())
}

[github-actions]

This PR is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 5 days.

[github-actions]

This PR is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 5 days.

[github-actions]

This PR was closed because it has been stalled for 5 days with no activity.