resource presence/absence enforcement

[errordeveloper]

I've been playing around with polcies (currently using TypeScript), and realised that currently one has to use stack policies to enfoce absence or presence of certain types of resources. I would seem quite convenient if there was a way to declare a resource policy that requires absence or presence of a particular resources.
At the moment having a resource policy falls short when resources are actually not present, or just cannot be detected (see #298). So it make it possible to evade rules that are defined in policies if one simply deletes a particular resource.

[Zaid-Ajaj]

Hi there @errordeveloper thanks for filing this issue and bringing our attention to this limitation. It makes sense to add this functionality. We will discuss it with the team and decide on a priority for it. Will keep you posted 😄