Add ability to cancel execution or set execution timeout

[folex]

Depending on the underlying WASM code, it's possible that Marine::call will block forever. To counteract such situations, Fluence Node needs a tool to limit execution time.

I see two possible approaches to implement such a tool:

1. Cancellation. Ability to cancel ongoing call execution.
2. Limit duration of exection. Ability to set the maximum duration of the call execution.