Container stopTimeout support in ecs-params.yml

[nhlushak]

Summary

Currently, there is no way to override null value for stopTimeout parameter in task definition using ecs-cli. Also I cannot control it on ecs-agent side since I'm using Fargate.

Description

• Which specific command was run? ecs-cli compose service up
• Which version of the CLI you are using? 1.14.0 (1327575)
• What platform are you using to run ECS CLI commands? Linux