Add support for deploying Windows based containers to Fargate

### Describe the feature

Creating an issue here to track https://github.com/aws/aws-toolkit-visual-studio/issues/321 on the Visual Studio Toolkit.
The Visual Studio Toolkit wraps the .NET Deployment Tool, so any changes to behavior will have to originate in this repository.

Windows container support is not available with the deploy tool today.

### Use Case

Snippet from the feature-request
`In my Visual Studio AWS Toolkit, there is only a publish target for linux-based deployment to AWS ECS using AWS Fargate. How do I publish to a Windows-based deployment AWS ECS using AWS Fargate? Thanks!`

### Proposed Solution

Add support for deploying Windows based containers to Fargate with the deploy tool

### Version used

unknown

### Operating System and version

Windows 10

Start by reviewing the .NET Deployment Tool and the linked Visual Studio Toolkit feature request. Identify where the deploy tool selects or validates Fargate container platforms and research the AWS requirements for Windows containers. Done means the tool can deploy a Windows-based container to AWS ECS on Fargate.

Written by the indexing model from the issue text.