Have you ever felt that quality assemblers are not rewarding enough?

This mod adds more module slots to "assembling machines" depending on quality. It affects all things that the game considers to be "assembling machines" that have module slots. That is:
Foundry
Biochamber
assembler 2,3
Oil refinery
Chemical plant
Centrifuge
EM plant
Cryogenic plant
Crusher

Technical details:
The amount of additional module slots equals to quality level. That would be 0 for normal, 1 for uncommon, 2 for rare, 3 for epic and 5 for legendary. Should work with all mods that add new qualities (if this mod loads after them that is). Feel free to request compatability for mods that add qualities (It is as easy for me as adding a mod dependency)
This mod actually creates a new prototype for each machine-quality pair. When first enabling the mod, any existing quality machines should be converted to those new types of machines. There is currently no implemented method to convert them back, so on mod removal all the quality assembling machines would disappear.
Also, thanks to Maya_XTG for finding a way to modify quality effects (https://mods.factorio.com/mod/more-quality-uses)