0.2mm, 1.0mm, 1.2mm nozzles for Prusa XL (and maybe others)

[nazar-pc]

Somewhat related to prusa3d/Prusa-Firmware#4492

0.25mm nozzle is a bit of an odd size in the ecosystem of third-party nozzles while 0.2mm is quite widely represented. Yes, it is possible to clone 0.25mm and create 0.2mm profile, but there is a value in automatic official updates and it is hard to imagine how adding one more variant would be problematic. The same for 1.2mm nozzle.

1.0mm nozzle is already supported in Prusa XL's firmware (at least in v5.1.0-alpha2 that I'm using right now), but not present in slicer, which I think should be corrected as well.

I'd love to see them all supported in the slicer 🙏

[rtyr]

We are not planning to add more nozzle diameters in the near future.