toFix

Elasticsearch Domain has no h2 description.
aws_elasticache_cluster:
- parameter_group_name seems Optional
aws_elasticache_replication_group:
- no `engine` param (should be Optional)
aws_instance:
- '//' breaks the syntax hilight
aws_kinesis_stream
- arn parameter missing
aws_lightsail_key_pair
- name_prefix missing
aws_nat_gateway
- Missing params
  - network_interface_id
  - private_ip
  - public_ip
aws_opsworks_application
- short_name is Optional
aws_opsworks_instance
- Missing params:
  - reported_agent_version
  - reported_os_family
  - reported_os_name
  - reported_os_version
aws_vpc_peering_connection
- param peer_owner_id is Optional from the code.
aws_vpc_peering_connection_accepter
- single-quotes break the hilight.
aws_vpn_connection:
- Missing vgw_telemetry and routes sets.

- For vim-snippets-terraform:
* added eip and networking_interface utils on 0.9.4
* added opsworks_php_layer
* added opsworks_static_web_layer