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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 -->

wait_for_target_group(connection, group_name)
        try:
            as_group = describe_autoscaling_groups(connection, group_name)[0]
            asg_properties = get_properties(as_group)
            if asg_properties != initial_asg_properties:
                changed = True
        except botocore.exceptions.ClientError as e:
            module.fail_json(msg="Failed to read existing Autoscaling Groups.",
                             exception=traceback.format_exc(), **camel_dict_to_snake_dict(e.response))
        except botocore.exceptions.BotoCoreError as e:
            module.fail_json(msg="Failed to read existing Autoscaling Groups.",
                             exception=traceback.format_exc())
        return changed, asg_properties
def delete_autoscaling_group(connection):
    group_name = module.params.get('name')
    notification_topic = module.params.get('notification_topic')
    wait_for_instances = module.params.get('wait_for_instances')
    wait_timeout = module.params.get('wait_timeout')
    if notification_topic:
        del_notification_config(connection, group_name, notification_topic)
    groups = describe_autoscaling_groups(connection, group_name)
    if groups:
        wait_timeout = time.time() + wait_timeout
        if not wait_for_instances:
            delete_asg(connection, group_name, force_delete=True)
        else:
            updated_params = dict(AutoScalingGroupName=group_name, MinSize=0, MaxSize=0, DesiredCapacity=0)
            update_asg(connection, **updated_params)
            instances = True
            while instances and wait_for_instances and wait_timeout >= time.time():