resource/aws_autoscaling_policy: Support ec2 autoscaling TargetTrackingScaling policy

[krrrr38]

close #1156

• related api spec
  • https://docs.aws.amazon.com/ja_jp/autoscaling/ec2/APIReference/API_PutScalingPolicy.html
  • https://docs.aws.amazon.com/cli/latest/reference/autoscaling/put-scaling-policy.html

> TF_ACC=1 go test ./aws -v -run=TestAccAWSAutoscalingPolicy -timeout 120m
=== RUN   TestAccAWSAutoscalingPolicy_basic
--- PASS: TestAccAWSAutoscalingPolicy_basic (205.29s)
=== RUN   TestAccAWSAutoscalingPolicy_disappears
--- PASS: TestAccAWSAutoscalingPolicy_disappears (211.57s)
=== RUN   TestAccAWSAutoscalingPolicy_upgrade
--- PASS: TestAccAWSAutoscalingPolicy_upgrade (243.48s)
=== RUN   TestAccAWSAutoscalingPolicy_SimpleScalingStepAdjustment
--- PASS: TestAccAWSAutoscalingPolicy_SimpleScalingStepAdjustment (89.07s)
PASS
ok      github.com/terraform-providers/terraform-provider-aws/aws       749.468s

• Acceptance test coverage of new behavior
• Documentation updates
• Well-formed Code
• Vendor additions

[krrrr38]

oops, this pr duplicate #2611. sorry close this one.

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Thanks!