* Add Output Of Subnet ARNs

Facilitates resource access manager, subnet sharing across accounts

* Update Readme For Subnet ARN Output

* Improving DHCP options docs

* generating README from variables description

* add ecs vpc endpoints

* add ecs vpcendpoints outputs

* add ecs vpc endpoints to readme inputs/outputs table

* add ecs vpc endpoints to readme endpoint list

* run terraform 0.12upgrade

* Cleanup for Terraform 0.12 (closes terraform-aws-modules#265, terraform-aws-modules#228)

…ws-modules#269)

…pgrade to 0.12)

…0.12 (terraform-aws-modules#288)

…es#301)

* adding secrets manager vpc end point support

* adding config vpc end point support

* adding codebuild, codecommit and git-codecommit vpc end point support

* adding transfer server vpc end point support

* IPv6 support

Add variable "enable_ipv6" to allow enabling IPv6 support (resulting in
passing "assign_generated_ipv6_cidr_block" to aws_vpc.

Enabling IPv6 support further results in an Egress-only internet gateway
being provisioned and routing tables of subnets being adjusted.

Additional variables allow to choose the indices out of the /64 subnets
based on the assigned /56 range.

* Add example for IPv6 usage

* Remove redundant parameter assign_generated_ipv6_cidr_block

This is needed exactly when var.enable_ipv6 is true.

* Set subnet ipv6_cidr_block to null if unused

* Be picky about spelling

* Revert unrelated change

* More IPv6 spelling

* Added IPv6 support to VPC module

* Added IPv6 support to VPC module

…sing outputs (terraform-aws-modules#311)

* AWS Glue VPC endpoint

* sagemaker notebook vpc endpoint

* correct service name for notebook endpoint

* added outputs kinesis

* added endpoints output glue, fix readme

* endpoint for STS

* endpoint for STS (variables)

* Added more VPC endpoints (Glue, STS, Sagemaker Notebook), and all missing outputs

* Add tags to VPC Endpoints

* Update variables.tf

add new line between variables

* centralize vpce tag param

* fix s3 tags

* Updated README

* Updated README

* Updated README

* Added icmp_code and icmp_type values to non default acl rules.

* Added support for both ICMP and non-ICMP rules in NACL

…AppMesh, Transfer, Service Catalog & SageMaker(Runtime & API) (terraform-aws-modules#324)

* add new endpoints

* merge change from master

…s-modules#335)

…dules#329)

Add support for `ipv6_cidr_block` in `*_{in|out}bound_acl_rules`.  As a
conseqeunce, the (ipv4) `cidr_block` is made optional.

…s-modules#355)

Update TFLint to v0.12.1

…form-aws-modules#388)

…ws-modules#390)

…orm-aws-modules#370)

…es/terraform-provider-githubfile-1584537572464705000

[ci skip] Create "LICENSE".

…es/terraform-provider-githubfile-1584537572464703000

[ci skip] Create ".pre-commit-config.yaml".

…es/terraform-provider-githubfile-1584537572464695000

[ci skip] Create "Makefile".

…es/terraform-provider-githubfile-1584537572464727000

[ci skip] Create ".gitignore".

…es/terraform-provider-githubfile-1584537604994775000

[ci skip] Create ".editorconfig".

…es/terraform-provider-githubfile-1584633789746446000

[ci skip] Create ".chglog/CHANGELOG.tpl.md".

terraform-aws-modules#424)

I ran into the same issue as terraform-aws-modules#126 because there's nothing in the documentation making it clear that `create_database_subnet_group` only has an effect if you also specify `database_subnets`.