Use link file to associate processes with works

[bladeJumper]

Workaround for #730 #726 #715

[bladeJumper]

After 1.16 update of chia, in windows, progress does not show up after plotting for a while.

I find the runtime error RuntimeError('SystemExtendedHandleInformation buffer too big') in process.py, line 216, which could be the rootcause.

Manager could not get the file list used by chia processes, thus it could not find the corresponding log file.

I have no idea how to fix it as the error is raised from psutil.

So here I develop a temporary work around, an link file would be created on creating plotting works, with no content and named # to store the association from log files to processes.

This could act as a workaround, for existing plottings, you would need to create an association file mannually.

The issue happens in windows, I guess linux is fine but did not test.

[mauver]

looks good your solution. I am using your method in my forked project. thanks. i suggest use open function instead of os.mknod for windows user.