[Kyron] Provide a hook for non-recoverable error

At present, all fatal errors are handled with `non-recoverable!` macro that calls internally a `panic!` macro.

Kyron should allow the exchange default implementation for it to allow the user to handle the fatal error based on his safety use case.

DoD
- The mechanism for exchanging `non-recoverable!` implementation is provided
- Code is scanned for leftover panic! usages and replaced with ``non-recoverable!`