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##### SUMMARY
<!--- Describe the new feature/improvement briefly below -->
Add support for `MaxInstanceLifetime` option to AWS ec2_asg module.
AWS feature introduction link: https://aws.amazon.com/about-aws/whats-new/2019/11/amazon-ec2-auto-scaling-supports-max-instance-lifetime/

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
ec2_asg

##### ADDITIONAL INFORMATION
<!--- Describe how the feature would be used, why it is needed and what it would solve -->
Usage example:
<!--- Paste example playbooks or commands between quotes below -->
```yaml
- ec2_asg:
    name: myasg
    region: us-east-1
    launch_config_name: my_new_lc
    min_size: 1
    max_size: 5
    desired_capacity: 3
    max_instance_lifetime: 604800  # seconds
```

<!--- HINT: You can also paste gist.github.com links for larger files -->

pending_instances:
    description: Number of instances in pending state
    returned: success
    type: int
    sample: 1
tags:
    description: List of tags for the ASG, and whether or not each tag propagates to instances at launch.
    returned: success
    type: list
    sample: [
        {
            "key": "Name",
            "value": "public-webapp-production-1",
            "resource_id": "public-webapp-production-1",
            "resource_type": "auto-scaling-group",
            "propagate_at_launch": "true"
        },
        {
            "key": "env",
            "value": "production",
            "resource_id": "public-webapp-production-1",
            "resource_type": "auto-scaling-group",
            "propagate_at_launch": "true"
        }
    ]
target_group_arns:
    description: List of ARNs of the target groups that the ASG populates
    returned: success
    type: list
    sample: [