Add a fuzz test to compare the interpreter and the recompiler's behavior

[koute]

We how have a basic fuzz testing harness in fuzz; add a fuzz test which will verify that the interpreter and the recompiler's behavior is the same for any arbitrary program.

[subotic]

@koute Would be interested.

[koute]

Go for it. (:

Note that currently the interpreter and the recompiler could behave differently, so if the fuzz test fails that's fine. It doesn't have to be hooked into the CI.