Schema: JAAS role data source

[SimoneDutto]

Type of change

Adding new schema

Description

Requesting schema change to add a role resource that will be used as part of permission management.

Role are entities that can be given permission to Juju resources. Users can be assigned to roles. 
In a follow-up we will ask to change some schema to add the ability to assign roles.

This schema change is part of work to allow the Juju Terraform provider to use JAAS-specific APIs. See more about JAAS [here](https://canonical-jaas-documentation.readthedocs-hosted.com/en/latest/).

Details

"name": schema.StringAttribute{
	Description: "The name of the role.",
	Required:    true,
},
"uuid": schema.StringAttribute{
	Description: "The UUID of the role.",
	Computed:    true,
},

Example terraform plan

resource "juju_jaas_role" "test" {
  name = "role-0"
}

// --------------- Second plan that uses the data source to use the role from plan #1

data "juju_jaas_role" "test" {
  name = "role-0"
}

Notes & References

No response

[hmlanigan]

This schema looks good to me.

[alesstimec]

Agreed with the schema proposal. However we still need to have a conversation about access resources for JAAS.