Add Show/Hide Command for All Construction Geometry in the Assembly

[pd700]

The idea is an assembly and sub-assembly level "master" switch Show/Hide  command for all origins and construction geometry. Planes, points ,axis, and origins should all be included.   The current Show/Hide  command at the component level would be retained, but is under in the assembly command hierarchy.

This feature would allow fewer mouse clicks to Show/Hide the all the construction geometry in the assembly or sub-assembly rather than current method of selecting each component. 

[pd700]

Just a note :  One way to do this while still having some flexibility would be  a assembly/sub-assy  level Show/Hide for each type of construction geometry.  This would allow datum planes, points, axis, etc to each have their own Show/Hide command and be controlled independently.