layers:Generalize validateRenderPassCompatibility

layers:Generalize validateRenderPassCompatibility

We have 2 separate function for checking render pass compatibility that
are nearly identical. This change is refactoring one of the functions
to make it more general-purpose so that it can be used for all of the
render pass compatibility checks. This includes passing through the
caller, a VUID, and some strings for the types of objects that are
having their render passes compared.

Added some temp comments on VUIDs that will be added for various render
pass compatibility checks.
Update framebuffer state struct to store render pass state ptr instead
of just the render pass create info.