Improve experience when an unexpected VM exit or crash occurs

[dblnz]

At the moment, when an unexpected VM exit or crash occurs in a debug build, the VM configuration and memory are dumped to a file.
The contents of the file are pretty difficult to navigate, we need to create some tooling that can parse the file and display formatted output about its contents to aid in diagnosing failures.

This is related to #222 which partially addresses this issue.