re-enable azure node groups in statefile and send azure scaleset as autoscaling group

cli/azure/autoscaling_node_group_test.go

@@ -0,0 +1,14 @@
+package azure
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAutoscalingNodeGroup(t *testing.T) {
+	assert := assert.New(t)
+	nodeGroups := AutoscalingNodeGroup("scale-set", 0, 100)
+	expectedNodeGroups := "0:100:scale-set"
+	assert.Equal(expectedNodeGroups, nodeGroups)
+}