AWS::CloudHSM::Cluster

## 1. Title
AWS:CloudHSM::Cluster

## 2. Scope of request
AWS:CloudHSM::Cluster support for [CloudHSM API actions](https://docs.aws.amazon.com/cloudhsm/latest/APIReference/Welcome.html)

## 3. Expected behavior
In [Create](https://docs.aws.amazon.com/cloudhsm/latest/userguide/create-cluster.html), it should create a CloudHSM cluster. In [delete](https://docs.aws.amazon.com/cloudhsm/latest/userguide/delete-cluster.html) it should delete the CloudHSM cluster.

## 4. Suggest specific test cases
TBD

## 5. Helpful Links to speed up research and evaluation
Updated [API docs](https://docs.aws.amazon.com/cloudhsm/latest/APIReference/Welcome.html)

## 6. Category (required) - Will help with tagging and be easier to find by other users to +1
Security

## 7. Any additional context (optional)
Support for all [API actions](https://docs.aws.amazon.com/cloudhsm/latest/APIReference/API_Operations.html) via CloudFormation

Start with the linked CloudHSM API and CloudFormation create-cluster and delete-cluster documentation, then review the repository's existing coverage-roadmap conventions for AWS resources. Done means AWS::CloudHSM::Cluster supports creation, deletion, and all API actions through CloudFormation; specific test cases are not yet defined.

Written by the indexing model from the issue text.