Aws-cdk: [route53] Support for health checks

[justin8]

Currently the only way to define a health check or even to enable health checks for alias targets appears to be using Cfn resources instead of the higher level constructs.

Use Case

Route53 health checks are commonly used for multi-region architectures, and not being able to create them is a little limiting

Proposed Solution

Other

• [ ] :wave: I may be able to implement this feature request
• [ ] :warning: This feature might incur a breaking change

---

This is a :rocket: Feature Request

[shivlaks]

@justin8 I agree this is a pretty important missing feature. marking it as a p1 to help us prioritize getting it implemented and added in.