ECS Prioritise REPLICA ECS services over Daemon: Able to set priority or dependency inside ECS Service so that ECS Service Scheduler launch task on ECS Container Instance for the service which has hight priority or dependency

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**Tell us about your request**
ECS Prioritise REPLICA ECS services over Daemon

**Which service(s) is this request for?**
ECS

**Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard?**
As per current configuration, the ECS Daemon service task will be prioritizes as compared with other replica services task.
Customer has use case where he want to place replica service task first and then demon service task.
Customer wants some dependency or prioritisation mechanism can be added so that service scheduler launch replica service task first as compared to daemon service.
As there are multiple services involved, hence workaround of sidecar is not feasible over here.

Start by reviewing the ECS service scheduler behavior described here, focusing on how replica and daemon services are currently prioritized when launching tasks on container instances. Define the requested priority or dependency mechanism and confirm how it should handle multiple services. Done means the desired scheduling order is clearly specified and supported by ECS.

Written by the indexing model from the issue text.