Normalize enum value names to reflect changes in the JSON file
Normalize enum value names to reflect changes in the JSON file

We now store options as (key => user visible string) in the json file.
The keys in the json file have been normalized. Now the engine also
reflects that change.

pratikshashroff/pcura,totalretribution/CuraEngine,pratikshashroff/pcura,ROBO3D/CuraEngine,alephobjects/CuraEngine,markwal/CuraEngine,patrick3coffee/CuraTinyG,fxtentacle/CuraEngine,patrick3coffee/CuraTinyG,totalretribution/CuraEngine,alephobjects/CuraEngine,Ultimaker/CuraEngine,fxtentacle/CuraEngine,ROBO3D/CuraEngine,totalretribution/CuraEngine,alephobjects/CuraEngine,ROBO3D/CuraEngine,mspark93/CuraEngine,mspark93/CuraEngine,pratikshashroff/pcura,patrick3coffee/CuraTinyG,markwal/CuraEngine,mspark93/CuraEngine,markwal/CuraEngine,Ultimaker/CuraEngine,fxtentacle/CuraEngine