A Tcl script that can take an arbitrary netlist and use Vivado to create pin placements

[clavin-xlnx]

A useful Tcl script would be to use Vivado to generate a high quality I/O pin placement from a synthesized netlist. This would be a one-time upfront run. The input would be a synthesized netlist (such as EDIF, or similar) and output would be an XDC file with port placements assigned as constraints.