feat(ses): allow VDM settings at the configuration set level (#30051)

### Issue # (if applicable)

Closes #30041 .

### Reason for this change
As described in the issue.



### Description of changes
To allow VDM settings at the configuration set level, `vdmOptions` property has been added to the `ConfigurationSet` Construct.

```ts
new ses.ConfigurationSet(this, 'ConfigurationSetWithVdmOptions', {
  vdmOptions: { // Add
    engagementMetrics: true,
    optimizedSharedDelivery: true,
  },
});
```



### Description of how you validated changes
I implemented unit tests and integration tests for the three cases.

1. Configuration set with both engagement metrics and optimized shared delivery enabled.
2. Configuration set with only engagement metrics enabled and optimized shared delivery not configured.
3. Configuration set with only optimized shared delivery enabled and engagement metrics not configured.

### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

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*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*