Reduce the amount of "parsing"

[connec]

A lot of the surface area of the codebase is dealing with parsing aws_sdk_cloudformation types into cloudformatious versions of those types.

While it's nice to get rid of spurious Options, introduce stricter enums, etc it leads to a lot more code to look after and a steady stream of panics for edge-cases that seem impossible but are, in fact, possible.

Since the aws_sdk_cloudformation is now 1.x, it would be reasonable to expose more of its types directly. E.g. it could serve as a drop-in replacement for aws_sdk_cloudformation with more powerful client methods.