(aws-eks): Allow custom parameters for cluster creation

[iliapolo]

We should allow users to pass additional parameters to the createCluster operation that the custom resources invokes.

Use Case

Normally, when some properties are missing from the implementation of an L2 construct, we refer customers to the escape hatching mechanism, allowing them to add those properties to the underlying CFN resource.

In our case, we are not using the L1 CFN construct, which means this mechanism is essentially void. We should implement an escape hatch that easily lets users augment the parameters we pass the SDK call.

This will allow users to implement missing features in the library.

For example:

• [aws-eks] Cluster Tags #4995
• [aws-eks] Enable Control Plane logs in EKS cluster #4159

Proposed Solution

Make sure the custom resources can pass through custom properties configured on the underlying AWS::Custom resource.

• 👋 I may be able to implement this feature request
• ⚠️ This feature might incur a breaking change

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This is a 🚀 Feature Request

[github-actions]

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