Fix linking error with resize calling default constructor
Fix linking error with resize calling default constructor

Resize may possibly resize up so the compiler wants to use the GCodePath() default constructor. This constructor did exist but was not implemented which was causing a linking error.

Contributes to issue CURA-5355.

ROBO3D/CuraEngine,ROBO3D/CuraEngine,Ultimaker/CuraEngine,Ultimaker/CuraEngine,ROBO3D/CuraEngine