hclField cannot handle object or nested object

For example

In Terraform Engine config:
```
notification_config = {
pubsub_topic = "projects/example-prod-data/topics/example-topic"
}
```
with `{{hclField . "notification_config" -}}`

will be turned to
```
notification_config = pubsub_topic = "projects/example-prod-data/topics/example-topic"
```

and with more complicated struct, for example

```
stream_configs = [{
bigquery_destination = {
dataset_uri = "bq://example-prod-data.example_dataset_id"
schema_config = {
recursive_structure_depth = 3
}
}
}]
```

with with `{{hclField . "stream_configs" -}}`

will be turned to
```
stream_configs = [
{
bigquery_destination {
dataset_uri = "bq://example-prod-data.example_dataset_id"

schema_config {
recursive_structure_depth = 3
}
}
},
]
```