add forwarder_iam_path variable to allow for iam role and policy paths

[ebram-va]

what

• This feature allows a path to be passed into the module when creating aws_iam_role and aws_iam_policy.

why

• Some company policies have boundary conditions in place that only allow aws_iam_role and aws_iam_policy to be created with a specific naming convention, which includes paths. A name does not allow characters such as forward slashes which may be necessary.

references

• N/A

[jamengual]

could you run terraform fmt?

[jamengual]

/test all

[ebram-va]

@jamengual it looks like the Auto Format job ran a terraform fmt against it and committed before I could. I did however look through the logs and saw an issue where the default path as empty string would fail so I updated that.

[jamengual]

/test all

[korenyoni]

Looks good to me. Thanks for the contribution!