Update to use CDK V2

[brochington]

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This is a very helpful little bit of kit, and would be helpful to have it use V2 of CDK, as it looks like V1 is pretty much deprecated.

[nideveloper]

Hey, I just released 2.0.0-alpha.0 with CDK 2 support. Everything seems to work as expected so will update from alpha to a full release after some user testing

[manumaki]

This seems to work for us also. When will you release the final version?

[manumaki]

Any update on this @nideveloper ? =)

[ppena-LiveData]

CDK v1's CloudFrontWebDistribution constructor prop aliasConfiguration does not exist in CDK v2's CloudFrontWebDistribution, so I don't think this line of code is going to work w/ CDK v2.

UPDATE: even though the docs don't show it, CloudFrontWebDistributionProps.aliasConfiguration does still exist but is deprecated in favor of CloudFrontWebDistributionProps.viewerCertificate.