Ability to disable VPC subnets

[zachreborn]

Describe the feature

The ability to enable or disable subnets in the VPC module based on need individually or all at once.

Examples

module "vpc" {
    source = "github.com/zachreborn/terraform-modules//modules/aws/vpc?ref=v3.3.4"

    name                    = "transit_vpc"
    vpc_cidr                = "10.11.0.0/16"
    azs                     = ["us-west-1a", "us-west-1b", "us-west-1c"]
    enable_private_subnet = false
    enable_db_subnet      = false
    tags = {
        terraform   = "true"
        created_by  = "Zachary Hill"
        environment = "prod"
        project     = "core_infrastructure"
    }
}

Confirmation

Confirmation that proposed solution is successful.