Allow customization of spoolman panel

[thijstriemstra]

I don't, and I expect most spoolman users, use the Location, Lot nr and Comment fields provided by Spoolman but they still show up in the panel, always empty.

I'm more interested in data from other fields like price, used length, density and temperature, or any of the other spoolman metadata.

Spool data:

Manufacturer data:

Describe the solution you'd like

Would be nice if I can select my own spoolman fields, with a minimum and maximum nr of fields.

fluidd 1.30.6