[EKS] [Windows]: Add support for kube-reserved and eviction-hard properties for Start-EKSBootstrap.ps1 script

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**Tell us about your request**
What do you want us to build?
- Configuration to pass `kube-reserved` and eviction-hard properties to `Start-EKSBootstrap.ps1` script on windows nodes.
- This feature is similar to following pull request from Linux AMI - https://github.com/awslabs/amazon-eks-ami/pull/367

**Which service(s) is this request for?**
EKS

**Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard?**
What outcome are you trying to achieve, ultimately, and why is it hard/impossible to do right now? What is the impact of not having this problem solved? The more details you can provide, the better we'll be able to understand and solve the problem.

**Are you currently working around this issue?**
How are you currently solving this problem?
- update `C:\ProgramData\kubernetes\kubelet-config.json` file prior to kubelet boot up on the worker node.

```
<--REDACTED-->
"kubeReserved": {
"cpu": "70m",
"ephemeral-storage": "1Gi",
"memory": "442Mi"
},
<--REDACTED-->
```

**Additional context**
Anything else we should know?

**Attachments**
If you think you might have additional information that you'd like to include via an attachment, please do - we'll take a look. (Remember to remove any personally-identifiable information.)

Start by locating Start-EKSBootstrap.ps1 and reviewing the analogous Linux AMI pull request #367. Trace how the Windows bootstrap handles kubelet configuration, including C:\ProgramData\kubernetes\kubelet-config.json, and verify the resulting kube-reserved and eviction-hard settings are present before kubelet starts.

Written by the indexing model from the issue text.