Add support for the 'description' field for the aws_security_group_rule resource

[hashibot]

This issue was originally opened by @timothykimball as hashicorp/terraform#16202. It was migrated here as a result of the provider split. The original body of the issue is below.

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Hi there,

It would be great to programmatically specify a description for security group rules we create. This will help someone independently auditing understanding why a rule is where it is.

I believe the CLI supports

aws ec2 authorize-security-group-ingress --group-id sg-123abc12 --ip-permissions '[{"IpProtocol": "tcp", "FromPort": 3389, "ToPort": 3389, "IpRanges": [{"CidrIp": "203.0.113.0/24", "Description": "RDP access from NY office"}]}]'

(taken from AWS Documentation: http://docs.aws.amazon.com/cli/latest/reference/ec2/authorize-security-group-ingress.html)

[ewbankkit]

Being addressed in #1587.

[Ninir]

Hi folks,

The related work being just merged, i'm going to close this issue!

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Thanks!