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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 -->

sample: [
        "i-0123456789012"
    ]
launch_config_name:
    description: >
      Name of launch configuration associated with the ASG. Same as launch_configuration_name,
      provided for compatibility with ec2_asg module.
    returned: success
    type: str
    sample: "public-webapp-production-1"
load_balancers:
    description: List of load balancers names attached to the ASG.
    returned: success
    type: list
    sample: ["elb-webapp-prod"]
max_size:
    description: Maximum size of group
    returned: success
    type: int
    sample: 3
min_size:
    description: Minimum size of group
    returned: success
    type: int
    sample: 1
mixed_instance_policy:
    description: Returns the list of instance types if a mixed instance policy is set.
    returned: success
    type: list
    sample: ["t3.micro", "t3a.micro"]