Add custom health checks for astra.netapp.io CRDs

[MichaelHaigh]

Summary

It would be great if Argo CD could incorporate custom health checks for astra.netapp.io CRDs.

Motivation

According to the docs, custom health checks can be contributed into the resource_customizations dir. There are a variety of different CRDs under the astra.netapp.io endpoint which Argo CD currently has no way of knowing if these resources are in a progressing, healthy, suspended, or degraded state.

These custom health checks have already been implemented, but we would like to get them integrated into the Argo CD repository.

Proposal

Adding the necessary lua scripts and tests to resource_customizations, similar to other health checks already implemented.