Bisect modifier

I know, that there are a couple of proposals on that, but this time I run through the source code and edited the Mirror modifier a little to get the exact Bisect modifier working. Although I'm not a programmer so my changes are dumb and lame, that's why I'd like to draw developer's attention to that and make more professional changes and implement it as a separate modifier. Okay! We already have this function that does our work:

*BKE_mirror_bisect_on_mirror_plane

As proof of concept, I just commented out this line in the "mirror.c" file:

mul_m4_v3(mtx, mv->co);

This does mirroring. The rest is working as a bisect. You may see the demo by the link below: drive.google.com/open

I'll try to reach the developers should I succeeded in clean and working code =)