Allow non-cut movements to be hidden

[davisburnside]

Some CAM makers, like Fusion360, color-code different movement types (Blue = Cut operations, Yellow = linking moves, Green = Ramping, Red = Plunging). They also give the ability to show/hide certain types, for better UI Clarity.

It would be nice if BlenderCAM offered this feature too. Maybe individual cam_path meshes could have edges tagged with movement type, then in edit mode a button could be used to hide certain types? I would like to collaborate in making this.

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