Cura 2.x User Folder for plugins

[markwal 1]

How about:

Windows: %AppData%/cura/plugins

Mac: ~/Library/Application Support/cura/plugins

Linux: ~/.cura/plugins

What do you think? I could do a PR unless there's a philosophical objection.

[nallath 1,124]

I have no issues with that. I would suggest that only "user" plugins are placed there (eg; Not plugins that are defaults, as we tend to update them).

We would also need a way to handle conflicts (what happens if translate tool is put in plugins folder)

[ahoeben 1,981]

I am fairly certain these locations already work. It is just that the folder doesn't get created automatically.

[markwal 1]

Ah. You're right. They do work. I attempted on Windows first and it didn't work (probably because I got the path wrong), but now I was debugging on Mac and yep, it's already in the _plugin_locations. So, never mind.

[ahoeben 1,981]

I have checked in some code that ensures that the plugins folder is created along with the other folders in the config folder.