Find a way to lower the ask timeout implications

[Manfred Bergmann]

Timeout is currently very expensive as a thread is spawned with a sleep.
For sure there is a better approach than wasting a full thread.

[Manfred Bergmann]

Two useful packages:

• for timeouts: https://github.com/npatrick04/timer-wheel
• for scheduler: https://github.com/endsec/scheduler

[Manfred Bergmann]

Implemented with f6c38bc