feat(interpreter): expose mutable access methods on stack and memory

[DaniPopes]

No description provided.

[mattsse]

those are very sensitive internals,
what's the use case you have in mind here?

[DaniPopes]

We allow mutable access to almost everything else, like the bytecode raw ptr, we either lock everything or nothing

I want to clear stack and memory to run it in a standalone loop

[mattsse]

We allow mutable access to almost everything else

fair, not opposed to this, so defer to @rakita here

[rakita]

lgtm