Jump Dst Address Analysis when NOT Following PUSHX

[xhyumiracle]

Currently ida-evm only support jump dst addr resolving when the Direct Previous Instruction of jump is PUSH2.
Chances are there might be other instructions right before JUMP(i), and analyzing it by hands & head can be quite annoying.

Especially in CTF puzzles :P

So I wrote an enhanced version (though the code is pretty ugly): https://github.com/xhyumiracle/ida-evm-enhanced

Basically, it acts like this:

Would love to know how you guys think about this, like, whether a pr is necessary or not.