feat: region tags examples and datasource

examples/resources/biganimal_region/resource.tf

@@ -15,7 +15,17 @@ variable "project_id" {
 resource "biganimal_region" "this" {
   cloud_provider = "aws"
   region_id      = "eu-west-1"
-  project_id     = var.project_id
+  project_id     = "prj_abc01234567"
+
+  tags = [
+    {
+      tag_name  = "test"
+      color = "blue"
+    },
+    {
+      tag_name  = "<ex-tag-name-2>"
+    },
+  ]
 }
 
 output "region_status" {

pkg/provider/data_source_region.go

@@ -90,6 +90,23 @@ func (r *regionsDataSource) Schema(ctx context.Context, req datasource.SchemaReq
 				Description: "Unique region ID. For example, \"germanywestcentral\" in the Azure cloud provider, \"eu-west-1\" in the AWS cloud provider.",
 				Optional:    true,
 			},
+			"tags": schema.SetNestedAttribute{
+				Description: "Assign existing tags or create tags to assign to this resource",
+				Computed:    true,
+				NestedObject: schema.NestedAttributeObject{
+					Attributes: map[string]schema.Attribute{
+						"tag_id": schema.StringAttribute{
+							Computed: true,
+						},
+						"tag_name": schema.StringAttribute{
+							Computed: true,
+						},
+						"color": schema.StringAttribute{
+							Computed: true,
+						},
+					},
+				},
+			},
 		},
 	}
 }