- Change the default value of the "security_group_enabled" variable from true to false

Signed-off-by: Quentin BERTRAND <contact@quentinbertrand.fr>

- Modify the `resource "aws_security_group_rule" "default_ingress"` block in `main.tf` to use `var.default_listener_ingress_cidr_blocks` and `var.default_listener_ingress_prefix_list_ids`
- Add a new variable `variable "security_group_ids"` in `variables.tf`
- Add a new variable `variable "default_listener_ingress_cidr_blocks"` in `variables.tf`
- Add a new variable `variable "default_listener_ingress_prefix_list_ids"` in `variables.tf`

Signed-off-by: Quentin BERTRAND <contact@quentinbertrand.fr>

- Add an output for the security group ID of the NLB

Signed-off-by: Quentin BERTRAND <contact@quentinbertrand.fr>

- Add `security_group_enabled = true` to `fixtures.us-east-2.tfvars`
- Add `security_group_enabled` variable to the `nlb` module in `main.tf`

Signed-off-by: Quentin BERTRAND <contact@quentinbertrand.fr>

- Add `aws_security_group.default` resource
- Add `aws_security_group_rule.default_ingress` resource
- Add `aws_security_group_rule.egress` resource
- Add `aws_security_group_rule.tls_ingress` resource
- Add `input_default_listener_ingress_cidr_blocks` variable
- Add `input_default_listener_ingress_prefix_list_ids` variable
- Add `input_security_group_enabled` variable
- Add `input_security_group_ids` variable
- Add `input_tls_ingress_cidr_blocks` variable
- Add `input_tls_ingress_prefix_list_ids` variable
- Add `output_security_group_id` output

Signed-off-by: Quentin BERTRAND <contact@quentinbertrand.fr>

- Add a complete license in the README file

Signed-off-by: Quentin BERTRAND <contact@quentinbertrand.fr>