Remove `@tscircuit/soup-util` and `@tscircuit/infgrid-ijump-astar`

[seveibar]

[Asymtode712]

@seveibar MultilayerIjump class from @tscircuit/infgrid-ijump-astar is being used for routing in both PCB and schematic traces, also there's an usage for autoroute function from the same package... what bout them ?

@tscircuit/soup-util doesn't have any usage, so it's easy to remove

[seveibar]

@Asymtode712 yea removing MultilayerIjump may be tricky but we don't really use that autorouter anymore (i.e. we can basically deprecate or replace sequential-trace)