This should make it a bit easier for others to create a new definition since there is less for them to 'have to know'. Previously they would be required to fill in as category Other, but now they can just leave the category out.
The material profiles are sent to UM3 with a manufacturer that's obtained from the printer definition rather than the material definition. The printer definition was 'Ultimaker' rather than 'Ultimaker B.V.' and the printer checked against this.
Contributes to issue CURA-4159.
There is no real limit by default now. Only light speed (and the limit on the input element's length). The feed rate limit should be set by a machine definition. If there is no limit set, let there be no limit to what the user can input.
Contributes to issue CURA-2284.