Specific support actions are not allowed in IAM Policies

From [AWS Support's documentation](https://docs.aws.amazon.com/IAM/latest/UserGuide/list_awssupport.html#awssupport-actions-as-permissions):

AWS Support does not let you allow or deny access to individual actions;
therefore your policy must use the "Action": "support:*" to use the
AWS Support Center or to use the AWS Support API.

Therefore the actions in [support.py](https://github.com/cloudtools/awacs/blob/f905a0ac46a9f9fec157d730f8798f15c19df442/awacs/support.py#L26-L42) seem useless if not misleading. And there's no predefined action in awacs that covers `support:*`.

Can the actions be used for anything else than IAM Policies? Am I missing something?

Review awacs/support.py lines 26-42 alongside the linked AWS Support IAM documentation to confirm which actions are valid policy permissions. Resolve whether the existing actions should be removed or whether support:* needs representation, and consider the repository's existing tests before defining the expected behavior.

Written by the indexing model from the issue text.