feat: Add zone-cross-account-vpc-association submodule

[jramosf]

Description

This PR add a new submodule to create cross-account Route53 VPC associations, using the authorization association resources (https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/hosted-zone-private-associate-vpcs-different-accounts.html)

Motivation and Context

For cross-account AWS documentation generally recommends using Route53Resolver. The API endpoint CreateVPCAssociationAuthorization is not even implemented in AWS Console.

However, this option is simpler as it does not require explicit resolver infrastructure (living within the VPC with specific Elastic Network Interfaces) and it does not involve cost on paying the Route53Resolver infrastructure, which makes it ideal for (most) cases.

Breaking Changes

N/A

How Has This Been Tested?

• [x] I have updated at least one of the examples/* to demonstrate and validate my change(s)

• [x] I have tested and validated these changes using one or more of the provided examples/* projects

• [x] I have executed pre-commit run -a on my pull request