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##### SUMMARY
elb_network_lb and elb_target_group should support UDP, currently only HTTP, HTTPS and TCP are supported by ansible.

Based on the current pages, UDP and TCP_UDP are supported as protocols:
- https://docs.aws.amazon.com/elasticloadbalancing/latest/network/create-listener.html
- https://docs.aws.amazon.com/elasticloadbalancing/latest/network/create-target-group.html

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
- elb_target_group
- elb_network_lb

##### ADDITIONAL INFORMATION
It would be useful to use UDP as a protocol for an NLB, additionally, attached target groups would need to support UDP.

TCP_UDP is another protocol that it would be useful to add support for (a port that would take TCP or UDP traffic and not care)

<!--- Paste example playbooks or commands between quotes below -->
```yaml
    - name: Create logstash target group
      elb_target_group:
        name: logstash_bunyan_production_tg
        protocol: udp
        port: 5600
        vpc_id: "{{ vpc_facts.vpcs[0].id }}"
        state: present

    - name: Create nlb
      elb_network_lb:
        name: logstash_nlb
        subnets: "{{ private_subnets + public_subnets }}"
        health_check_path: "/"
        health_check_port: "9600"
        health_check_protocol: "http"
        protocol: "udp"
        port: "5600"
        listeners:
          - Protocol: UDP
            Port: 5600
            DefaultActions:
              - Type: forward
                TargetGroupName: logstash_bunyan_production_tg
        state: present
```

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

stickiness_type = module.params.get("stickiness_type")
    health_option_keys = [
        "health_check_path", "health_check_protocol", "health_check_interval", "health_check_timeout",
        "healthy_threshold_count", "unhealthy_threshold_count", "successful_response_codes"
    ]
    health_options = any([module.params[health_option_key] is not None for health_option_key in health_option_keys])
    
    if health_options:
        if module.params.get("health_check_protocol") is not None:
            params['HealthCheckProtocol'] = module.params.get("health_check_protocol").upper()
        if module.params.get("health_check_port") is not None:
            params['HealthCheckPort'] = module.params.get("health_check_port")
        if module.params.get("health_check_interval") is not None:
            params['HealthCheckIntervalSeconds'] = module.params.get("health_check_interval")
        if module.params.get("health_check_timeout") is not None:
            params['HealthCheckTimeoutSeconds'] = module.params.get("health_check_timeout")
        if module.params.get("healthy_threshold_count") is not None:
            params['HealthyThresholdCount'] = module.params.get("healthy_threshold_count")
        if module.params.get("unhealthy_threshold_count") is not None:
            params['UnhealthyThresholdCount'] = module.params.get("unhealthy_threshold_count")
        
        if module.params.get("health_check_protocol") is not None and module.params.get("health_check_protocol").upper() != 'TCP':
            if module.params.get("health_check_path") is not None:
                params['HealthCheckPath'] = module.params.get("health_check_path")
            if module.params.get("successful_response_codes") is not None:
                params['Matcher'] = {}
                params['Matcher']['HttpCode'] = module.params.get("successful_response_codes")
    
    if module.params.get("target_type") is not None:
        params['TargetType'] = module.params.get("target_type")