Need icons to toggle visibility of planning objects

[mauigna06]

• [ ] mandible model
• [ ] fibula model
• [x] mandible planes and their handles separately
• [ ] fibula planes
• [x] mandible curve
• [x] fibula line
• [x] fibula pieces measurement lines
• [ ] fibula direction line
• [ ] fibula cylinders fiducials list (this one may need a dynamic modeler tool)
• [ ] mandible cylinders fiducials list (this one may need a dynamic modeler tool)
• [ ] fibula cylinders
• [ ] mandible cylinders
• [ ] miter box direction line
• [ ] miter boxes
• [ ] saw boxes and their handles separately
• [ ] bridge
• [ ] fibula guidebase
• [ ] mandible guidebase
• [ ] last mandible surgical guide prototype created
• [ ] last fibula surgical guide prototype created

[mauigna06]

On going work for October release