Updated VCS simulations to specify the top module just like is done with ModelSim.  This cleans up the module hierarchy when debugging in the VCS GUI because by default VCS makes all top level compiled modules as top level in the simulation.
Updated VCS simulations to specify the top module just like is done with
ModelSim.  This cleans up the module hierarchy when debugging in the VCS
GUI because by default VCS makes all top level compiled modules as top
level in the simulation.

svunit/svunit,svunit/svunit,nosnhojn/svunit-code,nosnhojn/svunit-code,nosnhojn/svunit-code,svunit/svunit