DAX intergration

### Is this feature request related to a new or existing Amplify category?

storage, interactions

### Is this related to another service?

DynamoDB Accelerator

### Describe the feature you'd like to request

Ability to use DAX and VPC setup via the amplify CLI

### Describe the solution you'd like

Just as adding a storage provide options for DAX.

### Describe alternatives you've considered

Updating Cloudformation templates for DAX capabilities.

### Additional context

_No response_

### Is this something that you'd be interested in working on?

- [ ] 👋 I may be able to implement this feature request

### Would this feature include a breaking change?

- [ ] ⚠️ This feature might incur a breaking change

Start by tracing the Amplify CLI storage category and its CloudFormation template generation, then determine how DAX and VPC setup should be represented alongside existing storage provider options. Done means the CLI can configure and provision DAX with the required VPC setup without manual CloudFormation template edits.

Written by the indexing model from the issue text.