Request: Add edge bevel/rounding option to Box, Sphere, and Tube SOPs

It would be handy if the basic 3D shape generator SOPs could add a bevel or smoothing to their edges at that very first step. Perhaps two parameters: a depth and a steps (where 1 step would make it a hard bevel). It would be very useful to not have to use 3d model importing to get shapes like these:

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Maybe a 3rd set of pars so that you can do it only on one or two sets of edges on the box sop: