feat: is locks subscription

[antouhou]

Issue being fixed or feature implemented

Add instant locks synchronization to be used for identity funding

What was done?

• Add importInstantLock method to Account class:
  • Imports IS lock to the storage end emits an event
• Add waitForInstnatLock method to Account class:
  • Return instant locks if it was already imported previously;
  • Waits for import event and returns instant locks after it was imported;
  • Rejects by a timeout;

How Has This Been Tested?

Added integration test to test scenarios above to TransactionStreamWorker

Breaking Changes

None

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have made corresponding changes to the documentation

For repository code-owners and collaborators only

• I have assigned this pull request to a milestone

[shuplenkov]

Looks good!

[shumkov]

LGTM! 👍