Adds support for generating Tenet traces with bochs backend

[gaasedelen]

This PR adds experimental support for generating Tenet traces with the bochs backend through wtf.

PS: I also dropped your single use of std:rotr as that is only supported in C++20 which was causing the build to fail on VS 2019.

[0vercl0k]

This is dope! I'll review this this weekend 🙏🏽

[0vercl0k]

All right, dropped the first round of comments; mostly nits.

[0vercl0k]

All right I've fixed a bunch of stuff and it's now in a good state I think - let me know if I've messed up anything up!

I've also attached a sample trace file for you to have a look if it looks fine 😀

Cheers

[0vercl0k]

I've also found a bug - basically if a breakpoint would change @rip, bochs wouldn't invoke the AfterExecution callback. It would invoke the BeforeExecution callback for the new @rip which would overwrite the previous state. This means we would miss the instruction executed after every breakpoints that changes @rip.

[update] Ok after talking with @yrp604 this logic is still flawed - if the instruction generates a page-faults we end up in the same scenario.

Cheers

[0vercl0k]

All right - I've moved the logic in the BeforeExecution hook - it might be the solution to all our problems. Will run through the various edge cases tomorrow!

Cheers