[feature request] data source for rancher stack.

[ozbillwang]

Hi there,

Terraform Version

$ terraform version
Terraform v0.11.6
+ provider.rancher v1.2.0
+ provider.template v1.0.0

Affected Resource(s)

Please list the resources as a list, for example:

• data source rancher_stack

Terraform Configuration Files

fake hcl

data "rancher_stack" "hello_world" {
  name = "hello_world"
  environment = "dev"
}

We can add service, service alias, load balancer and external service to running rancher stack. I'd like to have a data source to gather the details of exist rancher stacks.