Add tags to IAM users

[Kasama]

Changed command iamu to include user tags in the generated terraform

As described in the terraform documentation, user tags can be managed in the same .tf file as the user itself. This merge request adds this functionality so that if an user has tags, it will be reflected in the generated terraform configurations and/or state

[coveralls]

Coverage remained the same at 100.0% when pulling 83d2f57 on Kasama:add_tags_to_iam_users into 67cb929 on dtan4:master.

[coveralls]

Coverage remained the same at 100.0% when pulling 83d2f57 on Kasama:add_tags_to_iam_users into 67cb929 on dtan4:master.