Add method to check for decoding errors

[tcerqueira]

Feature for #286

• Add check_encoded method to Engine trait.
• Implement feature for all engines.
• Add tests
• Add benchmarks

The tests decode_invalid_trailing_bytes are failing because the error for decoding does not match with check implementation. I don't know if it's necessarily incorrect but it's definitely less useful error compared to the decode implementation. Either way, I think the check should error the same way as decode, for everyone's sanity.

The msrv build fails because of range pattern syntax.

[tcerqueira]

@marshallpierce do you have any suggestion on the best solution to throw the proper error?

[tcerqueira]

Benchamarks show it's slower than decode_slice 🥀